5.8Retrofitting chemical suction lances with low-level sensors (optional)12
10
11
4
4
5
6
7
7
8
8
9
9
6Commissioning
6.1Setting the water hardness (optional)12
6.2Filling the salt reservoir (optional)12
6.3Prepare chemical suction
6.4Tank13
7Operation
7.1Special safety instructions
7.2Notes for optimum wash results14
7.3Preparations for washing14
7.4Displaying and selecting the program
7.5Washing16
7.6Switching off the machine
7.7Executing daily cleaning17
7.8Executing weekly cleaning17
7.9Executing hygiene cleaning (only with drain pump)
20000000360-001-EN / 29. Aug. 2025HOBART
12
13
14
14
15
16
17
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Installation and Operation Manual
ECOMAX 404 / 504
EN
8Settings
8.1Overview of operator menu
8.2Open operator menu and make settings18
8.3Detergent/dosage amount20
8.4Rinse aid/dosage amount
8.5Set water hardness20
8.6Wash cycles21
8.7Hose filling detergent
8.8Hose filling rinse aid22
8.9External water treatment22
8.10Temperatures
8.11Displaying the temperatures24
9Display of faults and information
9.1Information25
9.2Error25
10Troubleshooting guide
10.1Poor wash result26
10.2Other faults
18
18
20
21
24
25
26
27
11Maintenance
12Disposal
13Product disclaimer
14Conformity
27
28
28
29
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EN
ECOMAX 404 / 504
Installation and Operation Manual
Notes on the documentation
1Notes on the documentation
1.1Application
This document contains the most important information for the installation and commissioning of the machine by
qualified personnel, as well as the information required for day-to-day operation by the operator
Keep the operation manual and all referenced documents in a safe and accessible place.
▶
Store the operation manual in a suitable container protected from humidity and dirt deposits.
▶
If you sell the machine, pass on the installation and operation manual.
▶
.
1.2
Referenced documents are all instructions that describe the installation, operation, maintenance and repair of the
device, as well as additional instructions for all accessories used.
For the operator:
‒
Operating instructions
For the specialised tradesman:
Installation instructions
‒
‒ Circuit diagram
‒ Spare Parts Catalogue
Layout of the documentation
1.3Representation conventions
1.3.1Symbols used
SymbolMeaning
Beware of hazardous electrical voltage
Beware of explosion
Beware of crushing
Beware of hazardous substances
Beware of hand injuries
Beware of slipping
Beware of hazard area
Useful additional information and tips
40000000360-001-EN / 29. Aug. 2025
Page 5
DANGER
WARNING
CAUTION
NOTICE
Installation and Operation Manual
ECOMAX 404 / 504
Safety instructions and regulations
1.3.2Representation in the text
RepresentationMeaning
NOTEImportant note for the operation of the machine, not a warning notice
►Step
Outcome/result
‒Listing 1nd level
•Listing 2nd level
2Safety instructions and regulations
2.1Safety instructions and warning notices
EN
During machine operation, observe the general safety instructions and warning notices that precede each
▶
action.
2.1.1Hazard levels
The hazard level is part of the safety instructions and is indicated by the signal word.
Potential consequences are differentiated by the choice of signal word.
Imminent danger:
results in serious physical injury or death.
Potentially hazardous situation:
may result in serious physical injury or death.
Potentially hazardous situation:
may result in minor physical injury.
Potentially harmful situation:
may cause damage to the product or other objects
2.1.2Layout of warning notices
Warning notices are depicted with warning symbols and signal words in the corresponding safety colours.
CAUTION!
Nature and source of the hazard
Explanation on the nature and source of the hazard
Measures for averting the hazard
▶
Additional measures for averting the hazard, where applicable
▶
0000000360-001-EN / 29. Aug. 20255
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EN
ECOMAX 404 / 504
Installation and Operation Manual
Safety instructions and regulations
2.2Basic safety instructions
2.2.1Product safety
The machine conforms to state-of-the-art technology and the recognised safety regulations. Nonetheless, hazards
may occur.
Operate the machine only in compliance with the operation manual.
All modifications and alterations to the product are reserved for persons authorised by HOBAR
2.2.2Personnel qualification
T.
Observe the regulations on occupational health and safety. W
▶
Carefully read through the Installation and Operation Manual before use.
▶
ActivityUser groupQualification/training
InstallationQualified personnelQualified electrician according to local and national safety reg-
ulations or electrician trained by Hobart or Hobart Service.
TraineesOnly under professional supervision and examination
CommissioningQualified personnelQualified electrician according to local and national safety reg-
ulations or electrician trained by Hobart or Hobart Service.
TraineesOnly under professional supervision and examination
Work on electrical systems
Work on refrigeration
systems
OperationOperating personnel
Maintenance, repairQualified personnelQualified electrician according to local and national safety reg-
Qualified personnelQualified electrician according to local and national safety reg-
ulations or electrician trained by Hobart or Hobart Service.
Qualified personnelCategory 1 expert certified in accordance with:
- Ordinance (EU) No. 517/2014 Article 10
- Implementing regulation (EU) 2015/2067
- Section 5 of the Chemicals Climate Protection Ordinance
(ChemKlimaschutzV §5) or a competent refrigeration technician according to local and national safety regulations
Only under supervision and after instruction by the operator on
and persons over the
age of 14
Handicapped individuals
Persons up to the age
of 13
TraineesOnly under professional supervision and examination
the basis of the Operation Manual, instructions on dangers
The suitability must be assessed by the operator on an individ-
ual basis
Persons up to the age of 13 are not suited for machine opera-
tion
ulations or electrician trained by Hobart or Hobart Service.
ear personal protective equipment.
2.2.3Product-specific hazards
Avoid body parts being crushed or knocked:
Observe the instructions on the packaging for storage, lifting or transporting.
▶
Do not reach into the hinge while closing the front door
▶
The machine must be secured against tipping over when set up in a freestanding position.
▶
Avoid risk of explosion:
Do not install machine in a potentially explosive location.
▶
Avoid electric shock, fire hazard:
Do not allow water to flow over live components.
▶
60000000360-001-EN / 29. Aug. 2025
.
Page 7
Installation and Operation Manual
ECOMAX 404 / 504
Product description
‒ Make sure the machine is correctly stored (see frost damage section 2.3).
‒ Make sure the machine does not overflow when being filled.
Do not damage the connection cable while unpacking.
▶
Have the machine connected to the power supply by qualified personnel.
▶
Have all modifications to the machine carried out by qualified personnel.
▶
Do not operate the machine without supervision.
▶
Avoid chemical burns, sensitisation of the skin, poisoning:
Use only suitable chemicals. Observe the manufacturer`s data.
▶
Have chemical sensor system set by authorised trained service technicians.
▶
Do not open the machine during operation, wait for the program to finish.
▶
Disconnect the machine from the mains prior to cleaning.
▶
For cleaning, wear protective equipment (gloves, safety goggles, protective clothing) when touching parts conta-
▶
minated by detergent.
Avoid burns, scalds (to the hands):
EN
Do not open the machine during operation or the evaporation phase, wait for the programme to finish.
▶
Otherwise, hot water could spray out.
Disconnect the machine from the mains prior to cleaning.
▶
Avoid slipping:
Moisture can build up on the floor around the machine.
Provide a floor covering that does not pose a risk of slipping when wet.
▶
Residues on the wash ware, hygiene regulations not maintained:
Hygiene regulations must be observed and/or demonstrated in accordance with the national provisions.
▶
2.2.4Additional hazards
Potential hazards caused by operating resources to be used can be found in the enclosed safety datasheets. Workplaces must be marked accordingly.
2.3
Avoid frost damage:
Temperatures below 0°C lead to functional damage.
Before storing below 0°C, empty residual water in hoses, tank and boiler
▶
Prior to restart, store the machine at room temperature (min. 15°C) for 24h.
▶
Avoid water damage:
Property damage
.
Do not operate the machine without supervision.
▶
Close on-site shut-off valves at the end of operation.
▶
3Product description
3.1Intended purpose
The machine is an item of technical equipment intended solely for commercial dishwashing.
The machine is designed solely for cleaning crockery (porcelain, glass, ceramic, temperature-resistant plastics or
stainless steel or similar) from the food industry.
Not for washing:
0000000360-001-EN / 29. Aug. 20257
Page 8
1
4
5
3
2
EN
ECOMAX 404 / 504
Installation and Operation Manual
Controls
‒ Containers that do not come into contact with foodstuffs, such as ashtrays, electric appliances etc.
‒ Animals or textiles
Foodstuffs intended for further consumption
‒
3.2Designation
The rating plate is located on the front of the machine. If you have any questions regarding service and parts, quote
the serial and DSN No.
① ON/OFF keyPressing this key switches the machine on.
Holding the key for 3 seconds activates the automatic drain and self-cleaning programme and switches off the machine.
After switch of
② STOP keyIn case of operating errors or machine faults, this key can be used to switch
off the machine immediately without prior drain process.
After switch off, however, the machine is not voltage free!
③ Programme selection keyPress the key to choose between different programmes.
④ Temperature display, rinsingStandard setting shows the maximum temperature achieved during the last
⑤ Temperature display, washing
80000000360-001-EN / 29. Aug. 2025
wash programme.
f, however, the machine is not voltage free!
Page 9
EX
Installation and Operation Manual
5Installation
5.1Special safety instructions
WARNING!
Risk of electric shock, fire hazard
Frost damage can lead to water flowing over live components and thus to injuries from electric
shock or fire.
Make sure the machine is correctly stored (see frost damage section 2.3).
▶
CAUTION!
Risk of being crushed or knocked
When being lifted or transported, the machine can overturn or fall and cause injury.
Observe the instructions on the packaging for storage, lifting or transporting.
▶
ECOMAX 404 / 504
Installation
EN
WARNING!
Risk of explosion
Installing the machine in a potentially explosive location can cause explosion and serious injury
from ejected parts.
Do not install machine in a potentially explosive location.
▶
NOTICE!
Temperatures below 0°C during transport/storage cause function impairments.
Prior to installation, store the machine at room temperature (min. 15°C) for 24h.
▶
5.2Transporting to the installation location
If possible, transport the machine in its packaging and on the pallet.
▶
Use suitable transport means (elevating truck, crane etc.).
▶
If using a forklift, shim the machine with wooden trusses.
▶
5.3
Removing the packaging
CAUTION!
Risk of electric shock, fire hazard
When the machine is unpacked, the connection cable can become damaged and cause injury from
electric shock or fire.
Do not damage the connection cable while unpacking the machine.
▶
Remove packaging materials and accessories from the machine.
▶
Inspect the machine for possible transport damage.
▶
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EN
ECOMAX 404 / 504
Installation
5.4Installing the machine
WARNING!
Risk of being crushed or knocked
The machine may tip over when set up in a freestanding position.
The machine must be secured against tipping over when set up in a freestanding position.
▶
Wall clearance is not required.
Align machine by turning the adjusting feet according to the spirit level.
▶
Distribute the machine weight equally onto all feet.
▶
NOTICE!
Property damage
Vapour may escape from the dishwasher door and lead to property damage.
Adjacent furniture has to be protected to prevent swelling.
▶
Installation and Operation Manual
5.5Connecting to the power supply
WARNING!
Risk of electric shock
Failure to connect properly to the power supply can cause mortal danger from electric shock.
Have the machine connected to the power supply only by qualified personnel.
▶
Take cable measurement DGUV V3.
▶
NOTE: To guarantee the electrical safety of the machine, it must be connected to a protective earthing
equipment conductor installed as specified. In addition, the machine must be connected on site to the
equipotential bonding connection. The connecting screw () provided for this purpose is located next to
the cable inlet.
These fundamental safety requirements and the professional design of the on-site installation must be
verified by a qualified electrician.
Hobart does not accept any liability for damage caused by improper installation! Any applicable local
installation instructions must be observed!
The mains cable must be connected via a cut-out device (main switch or accessible plug device).
Modification to an alternative power supply is possible as per the variants on the circuit diagram. Connection diagrams are located adjacent to the connection terminals.
5.6Connecting the water
NOTE:The machine must be operated with drinking water quality. For water with a high mineral content, we
recommend a demineralisation system. In the EU, Switzerland and possibly other countries, a type EA
backflow preventer must also be installed at the water connection in order to comply with the requirements
of EN 61770 (e.g. HOBART part no. 04-019574-001). Applicable local installation regulations must be
observed.
with integrated booster pump: flow pressure 0.8 – 6 bar.
‒ without integrated booster pump: flow pressure 2 - 6 bar.
‒ > 6 bar: provide pressure reducing valve.
Connect the union nut "A" (3/4" thread) of the water supply hose to the site shut off valve.
▶
Do not kink or cut the water supply hose.
▶
Any required extension must be executed using a suitable pressure hose.
▶
ECOMAX 404 / 504
EN
Installation
5.7
Machine without drain pump:
Ensure gravity drain.
▶
For these machine types, a floor drain is mandatory as
▶
the drain hose exits the machine at approx. 60 mm
above floor level. Otherwise, residual water may remain
in the tank and hose.
Do not kink drain hose.
▶
Machine with drain pump:
The connection between machine and site drain must
▶
not exceed a max. height of 0.65 m.
Connecting the drain
▶
▶
Do not lay the drain hose loose on the ground (the hose could become frayed), but fasten it in-situ.
Do not kink drain hose.
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ECOMAX 404 / 504
Installation and Operation Manual
Commissioning
5.8Retrofitting chemical suction lances with low-level sensors (optional)
WARNING!
Risk of electric shock
When touching live parts (hot water tank heater, tank heater
Have mounted by qualified personnel only.
▶
Install according to separate installation instructions.
▶
, pumps).
6
Commissioning
6.1Setting the water hardness (optional)
NOTE: The softener must be set to the existing water hardness (ask at the local water works).
Set hardness range according to section 6.1.
▶
6.2
Open Door.
▶
Unscrew the salt reservoir lid and add approx. 1 kg of
▶
granular (2-8 mm) regenerating salt (do not use salt tab-
lets).
Filling the salt reservoir (optional)
NOTICE!
Property damage
Accidentally filling the salt reservoir with detergent will damage the water softener.
Do not fill the salt reservoir with detergent.
▶
Fill up the reservoir with potable water (only during commissioning).
▶
Make sure the lid seal is free of soil deposits and salt.
▶
Screw lid back on and tighten.
▶
NOTICE!
Property damage
Salt residues on the tank floor cause corrosion damage.
Remove salt residues by hand.
▶
On completion, start a wash programme to remove all traces of salt, if necessary.
▶
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Installation and Operation Manual
If salt deficiency occurs during operation, the top display
▶
shows "SA", the bottom display shows "Lt".
ECOMAX 404 / 504
Commissioning
EN
To drain water from the tank, see section 7.6
▶
Top up salt (see above). It then takes a few minutes until the display disappears.
▶
.
6.3Prepare chemical suction
We recommend the use of HOBART Hyline detergent and rinse aid.
NOTE: Mixing chemicals in the hose when exchanging chemicals can lead to crystallisation and damage to
the hoses and dosing units. This is prevented by intermediary rinsing with water (see section 8.7 and
Failure to comply with this information will invalidate the guarantee and product liability.
CAUTION!
Chemical burns, sensitisation of the skin, poisoning
Improper use of chemicals or use of unsuitable chemicals can cause injury.
Use only commercial detergent and rinse aid.
▶
Observe the manufacturer's application and safety instructions.
▶
WARNING!
Chemical burns, sensitisation of the skin, poisoning
Incorrect handling of detergent or rinse aid can lead to serious injuries.
Place suction hose without colour marking at the suction valve down to the bottom of the external reservoir.
▶
Preparing the rinse aid:
Suction height of dosing pump: max. 1.5 m.
Place suction hose with blue marking at the suction valve down to the bottom of the external reservoir.
▶
6.3.2Hose filling
Fill the hose according to the instructions 8.7 and 8.8
.
6.4Tank
In the case of machines without booster pump that are connected to cold water, we recommend filling and emptying the water tank once according to the instructions (see section 7.3.1 and 7.6).
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ECOMAX 404 / 504
Operation
7Operation
7.1Special safety instructions
CAUTION!
Chemical burns, sensitisation of the skin, poisoning, burning
If the Door is opened during operation, vapour can escape and/or wash water can spurt out and
cause injury.
Do not open the Door during operation, wait for the program to finish.
▶
WARNING!
Danger of slipping
Moisture can build up around the machine and cause slipping.
Provide a floor covering that is guaranteed to be non-slip in case of moisture.
▶
Installation and Operation Manual
7.2Notes for optimum wash results
The rinse result is significantly affected by the water quality. If the mineral content is high, the minerals dissolved
become visible on the glasses in the form of spots and streaks during the drying process.
A HOBART trained service technician can determine the water's mineral content by measuring the
electrical conductivity. V
If the values are higher, we recommend the use of a HOBART HYDROLINE demineralization cartridge or a reverse osmosis unit.
If you have any questions, please contact your authorised HOBART service partner.
We recommend the use of special HOBART glass racks. HOBART racks hold the glasses in
slightly inclined positions – this improves the rinse efficiency
To avoid unpleasant smelling glasses, only chlorine-free detergent should be used for washing the glasses.
Before washing new glasses the first time with a commercial glass washer, intensive basic cleaning is mandatory to
reduce the greasy film which is on most glasses for protection during production. W
carried out by hand (wear gloves) with a higher detergent concentration (minimum 10 g/l) in a sink using a brush.
alues of less than 80 µS/cm are non-critical for rinsing glasses and cutlery.
.
e recommend this basic clean is
7.3Preparations for washing
7.3.1Preparing the machine
Check correct position of wash/rinse arms, strainers and if fitted stand pipe.
▶
Open site shut-of
▶
T
urn on main switch or insert the plug.
▶
Check level of detergent and rinse aid container.
▶
140000000360-001-EN / 29. Aug. 2025
f valve.
Page 15
Installation and Operation Manual
Close Door.
▶
Push the ON/OFF button.
▶
During automatic filling and heating, the ON/OFF button
flashes blue and the fill symbol is illuminated.
As soon as the machine is ready for operation, the ON/OFF button illuminates green and the fill symbol goes out.
7.3.2Preparing the washware
ECOMAX 404 / 504
Operation
EN
Remove any food residue.
▶
Place wash ware face down in the rack.
▶
Rinse of
▶
7.4
f wash ware.
Displaying and selecting the program
7.4.1Programme overview
CodeBeschreibung
P1für leichte Verschmutzungen
P2für normale Verschmutzungen
P3für starke Verschmutzungen
P4 / EProgramm mit reduziertem Energieverbrauch für
leichte bis normale Verschmutzungen
HYzur Hygienereinigung der Maschine (siehe Kapitel
7.9
)
7.4.2Displaying and selecting the program
Pressing the programme selection button in standby mode
▶
displays the programme currently selected.
Pressing the programme selection button again changes the
▶
programme on a rolling basis.
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ECOMAX 404 / 504
Operation
7.5Washing
Machines without dosing unit: Add detergent to the tank.
▶
Slide rack into the machine and close the door
▶
Press the ON/OFF key
▶
The ON/OFF key illuminates blue.
When the programme has finished, the ON/OFF key flashes
green.
.
.
Installation and Operation Manual
7.6Switching off the machine
Versions with stand pipe: Pull.
▶
Close Door.
▶
In standby mode, press the ON/OFF key for 3 seconds.
▶
The ON/OFF key flashes blue, the drain symbol illuminates
When the drain process is complete, the machine switches off
automatically and the key illumination goes out.
During the drain process, the machine interior is cleaned automatically. Then remove any coarse
residues manually.
When the machine has switched off:
Turn of
▶
Close on-site shut-off valve.
▶
160000000360-001-EN / 29. Aug. 2025
f main switch or remove the plug.
Page 17
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C
A
D
Installation and Operation Manual
7.7Executing daily cleaning
NOTICE!
Property damage
The use of unsuitable agents can cause corrosion or damage to the surfaces.
Do not use any chlorine-containing, acidic or metal-containing additives to clean the machine.
▶
Do not use metal sponges.
▶
Open the door, remove strainer and standpipe if fitted. Rinse under
▶
running water. Make sure that food debris does not enter pump
intake!
Clean machine interior.
▶
Replace strainer and stand pipe if necessary
▶
.
ECOMAX 404 / 504
Operation
EN
Leave the door open for ventilation.
▶
7.8Executing weekly cleaning
Remove and clean all rinse arms on the base and ceiling
▶
of the wash chamber. T
(A) between the arms and remove both arms. The
knurled nut should remain firmly attached to the slotted
screw axle (B) in the thinner rinse arm (C). If necessary,
hand-tighten the knurled nut on the slotted screw axle.
Caution: Do not lose the white Teflon disc (D)!
Also clean the arm base and axle on the base and ceiling.
▶
Replace all parts.
▶
7.9
After reaching a predefined number of rinse cycles, the notice "HY" is shown on the display and the ON/OFF key
flashes red/green. This indicates that an automatic hygienic clean of the machine interior should be carried out.
Executing hygiene cleaning (only with drain pump)
o do this, loosen the knurled nut
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ECOMAX 404 / 504
Installation and Operation Manual
Settings
Before end of operation, remove the rack and place 2 HOBART hygiene tabs in the machine interior (1 tab for
▶
model 404).
Tap the programme selection key.
▶
Select hygiene programme "HY".
▶
Close Door.
▶
Press the ON/OFF key
▶
While the hygiene programme is running (duration
approx. 10 minutes), the ON/OFF key illuminates blue.
.
Finally, the machine drains and switches off automatically.
The key illumination goes out.
If necessary, hygiene cleaning should be carried out before the pre-set number of wash cycles is
reached. With regular use, the machine interior will remain free of soil and dirt deposits.
8Settings
8.1Overview of operator menu
Menu itemFunction
01 Detergent/dosage amountSetting
02 Rinse aid/dosage amountSetting
03 Water hardnessSetting
04 Wash cyclesDisplay
05 Hose filling detergentFor commissioning and replacement of the canister
06 Hose filling rinse aidFor commissioning and replacement of the canister
07 - 10 External water treatmentReset
Zum Abschalten gegebenenfalls die Abbruch-Taste drücken.
ECOMAX 404 / 504
Settings
EN
Door öf
▶
Abbruch-Taste gedrückt halten und EIN/AUS-Taste kurz
▶
gleichzeitig drücken.
Door schließen.
▶
Nach Schließen der
navigiert werden. Die obere Zeile der Anzeige zeigt die Menü-
. an. Die untere Zeile zeigt den Einstell-W
Nr
Durch Drücken der Programmwahl-Taste wird der nächste
▶
Menüpunkt aufgerufen.
Durch Drücken (3 Sekunden) der EIN/AUS-Taste wird ein
▶
Menüpunkt aktiviert. Der Einstell-Wert in der unteren Zeile
blinkt.
fnen.
Erster Menüpunkt (01) wird blinkend angezeigt
Door kann zwischen den Menüpunkten
ert.
Durch Drücken der Abbruch-Taste kann der Einstellvorgang
▶
abgebrochen werden.
Durch einmaliges Drücken der Programmwahl-T
▶
ert erhöht. Bei dauerhaft gedrückter Programmwahl-
der W
T
aste erhöht sich der Wert stetig.
Durch Drücken der EIN/AUS-Taste wird der Wert gespei-
▶
chert.
Verlassen des Bedienermenüs durch Öffnen der Door oder
▶
Drücken der Abbruch-Taste.
Die Maschine wechselt in den Modus Aus.
aste wird
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ECOMAX 404 / 504
Installation and Operation Manual
Settings
8.3Detergent/dosage amount
Only relevant for integrated dosing units.
Open menu and make settings (see section 8.2).
▶
Select menu item "01"
▶
The bottom display shows the current dosage value, default setting: 2.3 g/l
Setting range 0-9.5 g/l
Make and save settings according to the recommendations of the detergent supplier.
8.4
Only relevant for integrated dosing units.
Open menu and make settings (see section 8.2).
▶
Select menu item "02"
▶
Setting range 0-2 g/l
Make and save settings according to the instructions of the rinse aid supplier.
8.5
Only relevant with integrated softener.
NOTE: The softener must be set to the existing water hardness (ask at the local water works).
Open menu and make settings (see section 8.2).
▶
Select menu item "03"
▶
Rinse aid/dosage amount
The bottom display shows the current dosage value, default setting: 0.3 g/l.
Set water hardness
The bottom display indicates the set degree of hardness in °d.
Setting range 1-30
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Installation and Operation Manual
8.6Wash cycles
Open menu (see section 8.2).
▶
Select menu item "04"
▶
After activating the menu item with the ON/OFF button,
the cycle number is shown as follows (taking 003456
cycles as an example):
The cycle number is always shown as a 6-place sequence of
numbers. First the first 2 places appear on the bottom display
on a rolling basis. "1-" appears on the display at the top.
ECOMAX 404 / 504
Settings
EN
This is followed by the middle 2 places with the display "2-"
above.
Finally, the last 2 places are shown with the display "3-" above
8.7Hose filling detergent
Only relevant for integrated dosing units.
Open menu and make settings (see section 8.2).
▶
Select menu item "05", bottom display shows "0".
▶
Activate the menu item by pressing the ON/OFF button (3
▶
seconds).
The bottom display changes to a flashing "1"
Filling does not start until the ON/OFF button is pressed again
▶
95 seconds)
(~
Before the 1, a dot flashes, indicating that the machine is
currently filling with detergent
You can cancel ongoing suction by pressing the Abort button
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ECOMAX 404 / 504
Installation and Operation Manual
Settings
There is no need to wait until the end once the filling process has been activated. The filling of the rinse aid hose
can also start in parallel.
8.8Hose filling rinse aid
Only relevant for integrated dosing units.
Open menu (see section 8.2).
▶
Select menu item "06", bottom display shows "0".
▶
Activate the menu item by pressing the ON/OFF button (3
▶
seconds).
The bottom display changes to a flashing "1"
Filling does not start until the ON/OFF button is pressed again
▶
175 seconds)
(~
After the 1, a dot flashes, indicating that the machine is
currently filling with rinse aid
You can cancel ongoing suction by pressing the Abort button
8.9External water treatment
Relevant only when activated (see section 8.9.3)
This can be used to monitor the capacity of an external water treatment or a pre-filter on the basis of the calculated
water flow.
8.9.1
Reset the remaining capacity to the output capacity value.
Open menu and make settings (see section 8.2).
▶
Select menu item "07".
▶
Resetting
After the menu item is activated with the ON/OFF button, a
▶
flashing "1" is shown on the bottom display.
Pressing the ON/OFF button again resets the programme.
▶
Flashing stops
8.9.2Remaining capacity
The remaining capacity counts backwards from the set output capacity value and can be shown as follows:
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Installation and Operation Manual
Open menu (see section 8.2).
▶
Select menu item "08"
▶
After activating the menu item with the ON/OFF button,
the remaining capacity is shown as follows (taking
003456 litres as an example):
The remaining capacity is always shown as a 6-place sequence
of numbers. First the first 2 places appear on the bottom display
on a rolling basis. "1-" appears on the display at the top.
This is followed by the middle 2 places with the display "2-"
above.
ECOMAX 404 / 504
Settings
EN
Finally, the last 2 places are shown with the display "3-" above
8.9.3Activate/deactivate
This must be deactivated to use the capacity monitoring.
Open menu and make settings (see section 8.2).
▶
Select menu item "09"
▶
Bottom display shows the current setting:
"0" = deactivated
"1" = demineralisation cartridge (assumption: 3 l/min)
"2" = reverse osmosis system (assumption = 1.5 l/min)
8.9.4Output capacity
Value is preset to 14000 l.
To display or change:
Open menu and make settings (see section 8.2
▶
Select menu item "10"
▶
After activating the menu item with the ON/OFF button, the max. 6-place value is shown as follows
(taking 014000 litres as an example):
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).
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EN
ECOMAX 404 / 504
Settings
First the first 2 places are shown on the bottom display.
"1-" appears on the display at the top.
Change with programme selection button as needed.
▶
The next two places are shown when the ON/OFF button is
▶
pressed.
Change with programme selection button as needed.
▶
The last two places are shown when the ON/OFF button is
▶
pressed.
Installation and Operation Manual
Change with programme selection button as needed.
▶
Pressing the ON/OFF button again saves a changed value.
▶
T
8.10
Here, it is possible to change from standard temperatures complying to DIN 10534 to elevated temperatures complying to NSF (Thermolabel 71° C). As a result, the program run times are extended.
Open menu and make settings (see section 8.2).
▶
Select menu item "11"
▶
Bottom display shows the current setting:
"0" = standard temperatures
"1" = increased temperatures
8.11
Open menu and make settings (see section 8.2).
▶
Select menu item "12"
▶
emperatures
Displaying the temperatures
Bottom display shows the current setting:
"0" = no display of temperatures.
"1" = display shows the maximum temperature reached during the last wash programme.
"2" = display shows the current boiler and wash tank temperatures.
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Installation and Operation Manual
ECOMAX 404 / 504
Display of faults and information
9Display of faults and information
9.1Information
The On/Off button flashes green/red alternately and the following instructions are shown with a letter combination on the display
.
DisplayCauseRemedy
SA LtRegenerating salt depleted.Refill regenerating salt (see section 6.2).
DoorFilling, washing or pump-out programme
interrupted
HY“Carry out hygiene programme” noticeExecuting hygiene cleaning (see section 7.9).
Close Door.
EN
9.2Error
The ON/OFF button illuminates red and "Er" appears on the top
display.
The error code is shown in the bottom display (see table).
Error codeReasonRemedy
01Temperature boiler sensor exceeded.Contact your HOBART Service Partner.
02Temperature boiler sensor undercut.Contact your HOBART Service Partner.
03Boiler thermostop in wash programme.Contact your HOBART Service Partner.
05Temperature tank sensor exceeded.Contact your HOBART Service Partner.
06Temperature tank sensor undercut.Contact your HOBART Service Partner.
07Upper limit of pressure sensor for boiler excee-
ded.
08Total value pressure sensor boiler undercut.Contact your HOBART Service Partner.
09Total value of pressure sensor for tank excee-
ded.
10Total value pressure sensor tank undercut.Contact your HOBART Service Partner.
12Water level regulation in wash tank failed.Contact your HOBART Service Partner.
13Filling programme monitor pressure sensor tank. Drain machine.
14Wash tank draining in pump out programme for
tank pressure sensor.
17Filling monitoring by impeller sensor
18Filling monitoring by measuring the water level
in the boiler.
28Fill level of wash tank too low at programme
start.
.Check water supply.
Contact your HOBART Service Partner.
Contact your HOBART Service Partner.
Clean the drain hose if necessary and pump-out
the machine again.
Check water supply.
The machine refills automatically and starts the
programme. If the error is permanently displayed, contact your HOBART Service Partner.
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EN
ECOMAX 404 / 504
Installation and Operation Manual
Troubleshooting guide
Error codeReasonRemedy
29Capacity of external water treatment unit deple-
ted.
31Filling monitoringCheck water supply.
Replace part or full demineralisation cartridge.
Contact your HOBART Service Partner
10Troubleshooting guide
10.1Poor wash result
Fault typePossible causeRemedy
Wash ware not clean.Wash arm stiff (must rotate easily by
hand).
Wash arm nozzles are clogged (visual check).
Rinse nozzles clogged (usually by
lime deposit).
Detergent concentration is too low or
too high.
Strainer soiled.Remove, empty and clean strainer.
Wrong programme selected for
heavily soiled wash ware.
Wash ware does not dry properly.Rinse aid dosing too low.Increase dosage.
Wash ware still greasy.Detergent concentration too low:
Rack is not suitable for type of
dishes (sloping).
Wash ware remains in the machine
too long at the end of wash cycle.
Streaks and spots on wash ware.Rinse aid concentration too high
(stripe or bubble formation).
Remove wash arms and clean them
thoroughly.
Also check water outlet from
machine to wash arm is clear.
Remove wash arm, remove cleaning
plugs and rinse wash arm thoroughly
until all soiling is removed.
Replace cleaning plugs.
Remove rinse arms and descale
them in separate container.
Check site softening system for function.
Check detergent concentration setting.
Select programme with longer wash
cycle.
increase dosage.
Check if detergent is appropriate. If
not, choose a stronger one.
Drain contaminated water and refill
machine. Improve the preliminary
cleaning of the wash ware.
Use appropriate racks to create a
sloping position which allows water
to drain away from cavities.
Remove wash ware as soon as cycle
is completed to enable it to dry.
Reduce dosage.
.
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Installation and Operation Manual
Fault typePossible causeRemedy
Hard water or high mineral content.Check water quality.
Rack is not suitable for type of
dishes (sloping).
Inadequate rinse aid dosing causes
stains.
Machines with integrated softener:
use of wrong salt (e.g. tablets).
ECOMAX 404 / 504
Every local water works holds data
on the composition of the water they
supply and will provide these on
request.
Reference values: Ideal calcium
value: 0 – 3°d (total hardness). Ideal
mineral content value: for glasses,
max. conductivity 100 µS/cm, for
dishes, still viable to max. 400
µS/cm.
Use appropriate racks to create a
sloping position which allows water
to drain away from cavities.
Increase rinse aid dosing.
Do not use salt tablets.
EN
Maintenance
10.2Other faults
Fault typePotential causesRemedy
Glasses are totally or
partially cloudy.
Glass/dish breakage.
Surface of glasses is rough and porous,
this is called glass corrosion.
Use of unsuitable dish or glass racks.Use suitable racks.
Use new glasses, this is not caused by a
malfunction on the machine.
11Maintenance
In order to maintain the warranty, as well as a permanently safe, efficient, and trouble-free operation of the
machine(s), the required maintenance must be carried out by authorized service technicians. We therefore recommend the conclusion of an inspection and maintenance contract, which guarantees qualified support by specially
trained service technicians according to a time schedule based on the operating conditions.
Genuine spare parts must be used for repairs and wearing part replacements. Wearing parts include dosing hoses,
rinse arm bearings, etc. In Germany
and Safety and must be inspected by a qualified electrician in accordance with the intervals specified by the Institute for Work and Health of the German Social Accident Insurance [DGUV V3 (BGV A3)].
, your HOBART machines are governed by the Ordinance on Industrial Health
0000000360-001-EN / 29. Aug. 202527
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EN
ECOMAX 404 / 504
Installation and Operation Manual
Disposal
12Disposal
The machine operator is responsible for disposing of the machine and its
▶
operating materials correctly and in accordance with environmental regulations. Observe the national and local legal provisions and regulations.
13Product disclaimer
Installations and repairs carried out by non-authorized technicians or using non-genuine spare parts, and any technical alterations to the machine not approved by the manufacturer will invalidate the manufacturer's warranty and
product liability.
EnEV SR 730.02 Anhang 2.15 (nur für Schweiz / Switzerland only)
Die Schutzziele der Niederspannungsrichtlinie 2014/35/EU wurden gemäß Anhang I Nr. 1.5.1 der Maschinenrichtlinie 2006/42/EG eingehalten.
Protecve Goals of the Low Voltage Direcve 2014/35/EU are in compliance wit h Appendix I No 1.5.1 of the Machinery Direcve 2006/42/EC.
Les objecfs de protecon de la direcve sur les basses tensions 2014/35/UE ont été respectés conforme à l’annexe I Nr. 1.5.1 der de la direcve relave aux machines 2006/42/CE.
Direcva de protecciones de baja tension 2014/35/UE estan en acuerdo con el apendice I No 1.5.1. de la direcva de maquinaria 2006/42/CE.
Gli obievi di protezione della direva per basse tensioni 2014/35/UE è stata rispeata secondo allegato I n. 1.5.1 della Direva per macchi ne 2006/42/CE.
De veiligheidsdoelstellingen van de laagspanningsrichtlijn 2014/35/EU zijn nageleefd in overeenstemming met nr. 1.5. 1 van bijlage I van de machine richtlijn 2006/42/EG.
Produkt spełnia wymogi bezpieczeństwa dyrektywy niskonapięciowej 2014/35/UE, zgodnie z załącznikiem I nr. 1.5.1 dyrektywy maszynowej 2006/42/WE.
Alçak Gerilim Yönetmeliği 2014/35/EU'nin koruyucu hedeflerine, Makine Yönetmeliği 2006/42/EC, ek I no. 1.5.1'e göre u yulmuştur.
Sigurnosni ciljevi direkve o niskom naponu 2014/35/EU udovoljavaju dodatku i br. 1.5.1. Direkve o strojevima 2006/42/EC
Upoštevani so zaščitni cilji Direkve o nizki napetos 2014/35/EU v skladu s prilogo I, št. 1.5.1 Direkve o strojih 2006/42/ES.
Os objevos de proteção da Direva de Baixa Tensão 2014/35/UE foram cum pridos de acordo com o Apêndice I, n.º 1.5.1 da Direva de Máquinas 2006/42/CE.
Cíle ochrany dle nízkonapěťové směrnice 2014/35/EU byly splněny dle přílohy I č. 1.5.1 směrni ce o strojních zařízeních 2006/42/ES.
Bestägt durch:
Confirmed by:Offenburg, 07.10.2024
ppa.
Harald Disch
Direktor Produktentwicklung Europa
Director Warewash Engineering Europe
Skyddsmålen i lågspänningsdirekvet 2014/35/EU är i överensstämmelse med bilaga I nr 1.5.1 i maskindirekvet 2006/42/EC.
EG-Konformitätserklärung
Declaraon of Conformity / Déclaraon de Conformité / Declaración de Conformida d / Dichiarazione di conformitá / Conformiteitsverklaring / Deklaracja zgodności / Försäkran om
överensstämmelse / Uygunluk beyanı / Deklarcija o sukladnos / Izjava o skladnos / Decla ração de Conformidade / Prohlášení o shodě
Installation and Operation Manual
14Conformity
ECOMAX 404 / 504
Conformity
EN
0000000360-001-EN / 29. Aug. 202529
Page 30
Original
Authorized to compile the technical file:HOBART UK
Southgate Way, Orton Southgate,
This declaraon of conformity is issued under the sole responsibility of the m anufacturer. Peterborough, PE2 6GN, UK
15th Floor, Building A
New Caohejing International Business
Center
391 Gui Ping Road
Shanghai, 200233
Telephone: +86 (0)21 34612000
Fax: +86 (0)21 34617166
Internet: www.hobartchina.com