Graco N22LT0, N22LR0, N22LH0, N22RN0, N22RT0 Instructions-parts List Manual
...
Instructions-Parts
TI8621a
With Linear Sensor
Standard
With DataTrak
™
9902471
Class I, Div 1
Group D T3A
0359
II 1 G
Ex ia IIA T3 Ga
ITS13ATEX27862X
Models with DataTrak™ display
include agency approvals listed below.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 3 for model information.
100 psi (0.7 MPa, 7.0 bar) Maximum Working Pressure
Updated technical information and repair videos are available at
www.graco.com. Click on “Tech Support”, and then enter “NXT” in the
“Search by Keyword” field.
For use with high performance finishing and coating pumps in hazardous or
non-hazardous locations. For professional use only.
®
NXT
Air Motor
311238ZAM
EN
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Air Motor Part No. Matrix . . . . . . . . . . . . . . . . . . 3
Air Motor Part Nos. . . . . . . . . . . . . . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Component Identification . . . . . . . . . . . . . . . . . . . . 7
De-icing Control (F) . . . . . . . . . . . . . . . . . . . . . . . 8
Integrated Air Control Module Accessory . . . . . . 8
Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . . . 9
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DataTrak Controls and Indicators . . . . . . . . . . . . 10
DataTrak Operation . . . . . . . . . . . . . . . . . . . . . . . . 11
Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Replace the DataTrak Module Battery or Fuse . 14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 15
LED is flashing . . . . . . . . . . . . . . . . . . . . . . . . . 15
Air Motor will not run with DataTrak . . . . . . . . . 15
Air Motor will not run all models . . . . . . . . . . . . 16
Erratic motor operation . . . . . . . . . . . . . . . . . . . 17
Erratic air pressure with built in air control . . . . 18
Air continuously exhausting from motor . . . . . . 18
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Preventive Maintenance Schedule . . . . . . . . . . 20
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . 20
Pressure Relief Procedure . . . . . . . . . . . . . . . . 20
Air Valve Repair . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cylinder and Piston Repair . . . . . . . . . . . . . . . . 24
Poppet Repair . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Replace the Linear Sensor (if present) . . . . . . . 28
Remote DataTrak Connection Kit NXT406 . . . . 29
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Air Motor Parts Drawing
(Shown with DataTrak and Low Noise Exhaust)
30
Air Motor Parts Drawing (Shown with Linear
Sensor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
NXT Model 2200 Air Motors . . . . . . . . . . . . . . . 32
NXT Model 3400 Air Motors . . . . . . . . . . . . . . . 34
NXT Model 6500 Air Motors . . . . . . . . . . . . . . . 36
Air Motor Parts Drawing (for use with Remote
DataTrak) . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Air Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Mounting Hole Diagrams . . . . . . . . . . . . . . . . . . . . 43
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 48
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 48
2 311238ZAM
Models
ID
Models
Air Motor Part No. Matrix
Check your motor’s identification plate (ID) for the 6-digit part number of your motor. Use the
following matrix to define the construction of your motor, based on the six digits. For example, Motor Part No. N65DT0 represents an NXT motor (N), 6500 cc per stroke (6 5), with
de-icing exhaust (D) and DataTrak monitoring (T). The last digit (0) is unassigned.
N6 5 D T 0
First Digit
(Motor)
N (NXT
Air Motor)
Remote exhaust models have a 1 in. npt(f) exhaust
outlet, allowing installation of a muffler or plumbing
to route exhaust to a remote location.
Remote DataTrak models do not have the DataTrak display on the motor. An external plug connects to systems using a remote display interface.
See pages 38-39 for parts.
Second and Third Digits
(motor size in cc per stroke)
65 6500 D De-icing N None 0 None
34 3400 L Low noise T DataTrak 2
22 2200 R Remote exhaust
Fourth Digit
(Exhaust Type)
(see note below)
Do not operate the remote exhaust air motor without a
plumbed exhaust line or muffler installed.
Fifth Digit
(Data Monitoring)
R Remote DataTrak
H Linear Sensor
Sixth Digit
(unassigned)
assigned
311238ZAM 3
Models
Air Motor Part Nos.
Air
Motor
Part No. Series
NXT
Model
Piston
Diameter,
in. (mm) De-Ice
N22DN0 L 2200 6.0 (152)
N22DT0 L 2200 6.0 (152)
N22DH0 L 2200 6.0 (152)
N22LN0 L 2200 6.0 (152)
N22LT0 L 2200 6.0 (152)
N22LR0 L 2200 6.0 (152)
N22LH0 L 2200 6.0 (152)
N22RN0 L 2200 6.0 (152)
N22RT0 L 2200 6.0 (152)
N22RH0 L 2200 6.0 (152)
N34DN0 L 3400 7.5 (191)
N34DT0 L 3400 7.5 (191)
N34DH0 L 3400 7.5 (191)
N34LN0 L 3400 7.5 (191)
N34LN2 L 3400 7.5 (191)
N34LT0 L 3400 7.5 (191)
N34LR0 L 3400 7.5 (191)
N34LH0 L 3400 7.5 (191)
N34RN0 L 3400 7.5 (191)
N34RT0 L 3400 7.5 (191)
N34RH0 L 3400 7.5 (191)
Low
Noise
Remote
Exhaust
Includes
DataTrak
™
Includes
Remote
DataTrak
™
Includes
Linear
Sensor
N65DN0 L 6500 10.375 (264)
N65DT0 L 6500 10.375 (264)
N65DH0 L 6500 10.375 (264)
N65LN0 L 6500 10.375 (264)
N65LN2 L 6500 10.375 (264)
N65LT0 L 6500 10.375 (264)
N65LR0 L 6500 10.375 (264)
N65LH0 L 6500 10.375 (264)
N65RN0 L 6500 10.375 (264)
N65RT0 L 6500 10.375 (264)
N65RH0 L 6500 10.375 (264)
257055 L 6500 10.375 (264)
Air motor includes potted linear sensor approved for use in hazardous locations, but only when it is used with XM
plural component sprayers.
4 311238ZAM
Warnings
WARNING
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. Refer
back to these Warnings. Additional, product-specific warnings may be found throughout the body of this manual
where applicable.
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic
drop cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable
fumes are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
SPECIAL CONDITIONS FOR SAFE USE
Equipment must comply with the following conditions to avoid a hazardous condition which can cause
fire or explosion.
• All label and marking material must be cleaned with a damp cloth (or equivalent).
• The electronic monitoring system is required to be grounded. See Grounding instructions.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like
just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin
and cause serious injury.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
311238ZAM 5
Related Manuals
WARNING
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equip-
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your Graco distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
ment, follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
component. See Technical Data in all equipment manuals.
all equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS forms from distributor or retailer.
Graco replacement parts only.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
• Gloves
• Hearing protection
Related Manuals
Component manuals in U.S. English:
Manual Description
311239 Integrated Air Control
Modules Instructions-Parts
311486 DataTrak Conversion Kit Instructions-Parts
312148 NXT Air Motor Mounting
Conversion Instructions-Parts
3A0293 AIr Controls Instructions-Parts
406656 NXT135 Air Valve Seal Kit
406657 NXT144 Air Valve Rebuild Kit
406658 Air Motor Repair Kits
406820 NXT145 Replacement Kit
6 311238ZAM
Component Identification
TI8233b
H
KJ
F
G
A
Detail With Air Valve
Cover Removed
TI7759a
B
C
D
E
L
M
Key for FIG. 1
Component Identification
A Air Inlet, 3/4 npt(f)
B Bleed-Type Master Air Valve
C Air Regulator Adjustment Knob
D Air Pressure Gauge
E Air Filter (out of view; located at rear of air control kit)
F De-icing Control
G Air Valve (behind cover)
H DataTrak module (see pages 9-14; not present on all
models)
J Runaway Solenoid (component 1)
K DataTrak Sensors (component 2)
L Air Valve Inlet Port, 3/4 npt(f)
M Safety Relief Valve
FIG. 1: Component Identification (Model Shown with DataTrak Module and Accessory Air Control Kit)
311238ZAM 7
Component Identification
TI8802aTI8159b
De-icing Control (F)
Open with knob or flat blade screwdriver to reduce icing.
If needed, adjust enough warm feed air bleed to eliminate icing.
Low noise models have exhaust baffles that can
accumulate ice easily.
Integrated Air Control Module
Accessory
Accessory Air Control Kits include air line components in an integrated assembly. Order the kits
separately. See manual 311239 for installation
instructions.
Bleed-type Master Air Valve (B)
Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing
or moving parts.
• Required in your system to relieve air trapped
between it and the air motor when the valve is
closed.
• Be sure the valve is easily accessible from the
pump and located downstream from the air regulator.
Air Regulator (C)
Adjusts air pressure to the motor and fluid outlet pressure of pump. Locate it close to the pump. Install a
gauge (D) to read air pressure.
Safety Relief Valve (M)
Automatically opens to relieve air pressure, to prevent
pump overpressurization.
• NXT011 with locking air regulator and 110 psi
(0.76 MPa, 7.6 bar) relief valve
• NXT031 with locking air regulator and 75 psi
(0.51 MPa, 5.1 bar) relief valve
• NXT021 with non-locking air regulator and 110
psi (0.76 MPa, 7.6 bar) relief valve.
Air Filter (E)
Removes harmful dirt from compressed air supply.
Graco recommends using an air filter with a minimum measurement of 40 micron.
8 311238ZAM
Grounding
60, 61
TI8250a
GW
Motor Lubrication
Graco does not require lubrication beyond the grease
installed at the factory or through regular maintenance.
With good quality compressed air and normal ambient
conditions NXT air motors will run millions of cycles
without additional lubrication.
However, if any of the following criteria apply to your
system, you will benefit from installing a 3/4 in. air line
lubricator in the air line before the air motor or from
occasionally adding oil to an air filter cup.
• Air supply does not contain any oil.
• Air supply is very wet.
• Air supply is very dry.
• Air motor is run at low air pressure.
• Air motor is run in unusually hot or cold environments.
Areas that benefit from lubrication:
• main piston o-rings(17),
• sliding valve spool(119/108), and
• motor detent assembly (113).
Add Accessory Air Lubricator
If using an air motor with integrated air controls, add an
accessory airline lubricator to the motor inlet. The oil
will move through the air filter.
Depending on air quality you may need to change
the air filter more frequently.
Graco offers airline lubricators for NXT air motors.
Order 214848 (1/2 in.) for NXT 2200 and NXT 3400
air motors. Order 214849 (3/4 in.) for NXT 6500 air
motors.
If using an air motor without integrated air controls, add
a standard type filter/regulator/lubricator that is sized for
the specific air motor, such as 217073 (3/4 in.) or
217072 (1/2 in.).
Grounding
Add Lubrication
The three methods for adding lubrication are described
below.
Lubricate Air Valve
Perform these steps annually, or more often depending
on your duty cycle, air pressure, and air quality. Use a
high quality lithium-based grease.
1. Remove the 10 air valve cover screws (124) and air
valve cover (112).
2. Grease all visible moving parts, especially detent
(113) and valve pistons (119).
Lubricate Air Filter Bowl
If using a motor with integrated air controls, add 50-75
ml of oil to the air filter bowl and run the motor for a few
minutes at a fast cycle rate. The oil will move through
the air valve and main piston.
The equipment must be grounded to reduce the risk of
static sparking. Static sparking can cause fumes to
ignite or explode. Grounding provides an escape wire
for the electric current.
The equipment must be grounded. Grounding reduces
the risk of static and electric shock by providing an
escape wire for the electrical current due to static build
up or in the event of a short circuit.
See F
IG. 2. Use the ground screw (60) and lockwasher
(61) to attach Part No. 244524 Ground Wire (GW) at the
rear of the air motor. Tighten the screw securely. Connect the other end of the ground wire to a true earth
ground.
It is normal for some oil to come out through the
exhaust.
311238ZAM 9
F
IG. 2. Ground Wire
DataTrak Controls and Indicators
/min,
X
W
Y; See Details at right.
CF BT
GT
V
RT
T
PF
RK
U
UT
DT
ST
Run Mode
Setup Mode
TI8215a
TI8622b
TI8623b
RK
PF
DataTrak Controls and Indicators
DataTrak is included with certain models. See page 3 for a list of models featuring DataTrak.
It is recommended that a 3/4 in. air line lubricator be used with DataTrak models.
For remote DataTrak models, see your system operation manuals.
To prevent damage to the soft key buttons, do not press the buttons with sharp objects such as pens, plastic
cards, or fingernails.
Key for FIG. 3
T Runaway Limit, in cycles per minute (user settable;
00=OFF)
U Lower Displacement (user settable)
V Flow Rate Units (user settable to gpm [US],
gpm [Imperial], oz/min [US], oz/min [Imperial], l/min, or
cc/min)
W LED (fault indicator when lit)
X Diagnostic Reference Card (see T
Y Display
ABLE 1, page 13)
PF Prime/Flush Key (Enables Prime/Flush mode. While in
Prime/Flush mode, runaway protection is disabled and
the batch totalizer [BT] will not count.)
RK Reset Key (Resets faults. Press and hold for 3 seconds to
clear the batch totalizer.)
CF Cycle/Flow Rate
BT Batch Totalizer
GT Grand Totalizer
RT Runaway Toggle (enable/disable)
UT E1 Toggle
DT E2 Toggle
ST E5 Toggle
FIG. 3. DataTrak Controls and Indicators
10 311238ZAM
DataTrak Operation
B
DataTrak Operation
DataTrak is included with certain models. See page
3 for a list of models featuring DataTrak.
For remote DataTrak models, see your system
operation manuals. See pages 38-39 for parts.
The DataTrak display (Y) will turn off after 1 minute
to save battery life. Press any key to wake up the
display.
Setup Mode
1. See FIG. 3. Press and hold for 5 seconds until
Setup menu appears.
2. To enter settings for runaway, lower size, and flow
rate units, and to enable runaway, E1, E2, and E5
error options, press to change the value, then
to save the value and move the cursor to the
next data field.
Run Mode
Runaway
The runaway control should be tested regularly. To
test, go to Setup Mode and set value to 1 (one).
Pump should stop in six cycles.
1. See FIG. 3. If pump runaway occurs, the runaway
solenoid will actuate, stopping the pump. The LED
(W) will flash and the display (Y) will indicate a runaway condition (see Table 1).
2. To reset runaway monitor, close master air valve
(B). Wait for air to completely bleed off the air motor
before going to step 3. The screen will change to
indicate this, as shown below.
When runaway, E1, E2, and E5 error options are
enabled, a will appear on the setup screen. See
F
IG. 3.
3. Move the cursor to the E5 error enable option field,
then press once more to exit Setup mode.
3. Press to clear the diagnostic code and reset
the runaway solenoid.
4. Open master air valve (B) to restart pump.
To disable runaway monitoring, go to setup mode
and set runaway value to 0 (zero) or toggle (RT) off
(see F
IG. 3).
311238ZAM 11
DataTrak Operation
/min,
Prime/Flush
1. See FIG. 3. To enter Prime/Flush mode, press any
key to wake up the display, then press . The
Prime/Flush symbol will appear in the display and
the LED will flash .
2. While in Prime/Flush mode, runaway protection is
disabled and the batch totalizer (BT) will not count.
3. To exit Prime/Flush mode, press any key to wake
up the display, then press . The Prime/Flush
symbol will disappear from the display and the LED
will stop flashing.
Counter/Totalizer
See FIG. 3. The last digit of the batch totalizer (BT) represents tenths of gallons or liters. To reset the totalizer,
press any key to wake up the display, then press and
hold for 3 seconds.
Display
See FIG. 3. The display (Y) will turn off after 1 minute of
inactivity in Run mode or 3 minutes in Setup mode.
Press any key to wake up the display.
DataTrak will continue to count cycles when display
is off.
Diagnostics
DataTrak can diagnose several problems with the
pump. When the monitor detects a problem, the LED
(W, F
IG. 3) will flash and a diagnostic code will appear
on the display. See Table 1.
To acknowledge the diagnosis and return to the normal
operating screen, press once to wake up the dis-
play, and once more to clear the diagnostic code
screen.
If flow rate is set to both totalizers will dis-
play the number of pump cycles.
12 311238ZAM
Table 1: Diagnostic Codes
DataTrak Operation
Symbol Code
No.
E-1 Diving Up Leak during upstroke. Worn piston valve or packings.
E-2 Diving Down Leak during downstroke. Worn intake valve.
E-3 Low Battery Battery voltage too low to stop
E-4 Service
Code Name Diagnosis Cause
Runaway Pump running faster than set runaway
limit.
• Increased air pressure.
• Increased fluid output.
• Exhausted fluid supply.
• Low battery. To replace battery, see
runaway.
page 14.
• Disable Runaway mode until battery
is replaced; see page 11.
Problem with stopping runaway. • Damaged solenoid.
Component 1
• Damaged valve carriage.
E-4 Disconnected
Solenoid
E-5 Service
Component 2
Solenoid is disconnected. • Solenoid unplugged.
• Damaged solenoid wires.
Problem with sensing valve movement. • Sensors unplugged.
• Sensors mounted incorrectly.
• Damaged sensors.
• Damaged valve carriage.
E-6 Blown Fuse Fuse is blown. • Faulty solenoid or solenoid wiring.
• Extreme temperatures (above 140°F
[60°C]).
• Disable Runaway mode until fault is
corrected and fuse is replaced. See
pages 11 and 14.
311238ZAM 13
DataTrak Operation
132
131
135
TI8216c
Series
Letter
Solenoid Cable Connection
Battery
Fuse (131a)
Sensor Cable Connection
TI7757a
Replace the DataTrak Module
Battery or Fuse
To reduce the risk of fire and explosion, the battery
and fuse must be replaced in a non-hazardous location.
Use only an approved replacement battery, shown in
Table 2, and an approved fuse, shown in Table 3.
Use of an unapproved battery or fuse will void
Graco’s warranty and Intertek and Ex approvals.
1. Remove two screws (135). Carefully slide the DataTrak module (131) out of the housing (132). See
F
IG. 4.
4. To replace the battery, disconnect the used battery and replace with an approved battery.
Use only a Graco-approved replacement fuse (131a).
Table 2: Approved Batteries
Energizer alkaline # 522
Varta alkaline # 4922
Ultralife lithium # U9VL
Duracell alkaline # MN1604
5. To replace the fuse (131a):
a. Remove the screw, metal strap, and plastic
holder.
b. Pull the fuse away from the board.
c. Replace with a new fuse (131a).
F
IG. 4. Remove DataTrak Module
2. Disconnect the runaway solenoid and sensor cables
from the module board. See F
3. Take the DataTrak module (131) to a non-hazardous location.
IG. 5.
Table 3: Approved Fuses
Series* Fuse Required
A NXT413
B and later 24V216
* F
IG. 4 shows where to find the Series letter.
14 311238ZAM
F
IG. 5. DataTrak Battery and Fuse Location
Troubleshooting
Also see the troubleshooting section in the Integrated Air Control Modules manual 311239.
To find parts lists for the parts identified in the troubleshooting tables, see page numbers listed in the table
below.
Air Motor Model Parts List Page
NXT Model 2200 32
NXT Model 3400 34
NXT Model 6500 36
LED is flashing
See TABLE 1: Diagnostic Codes, page 13.
Troubleshooting
Air Motor will not run with DataTrak
Symptom Cause Check Procedure Solution
Runaway error code
displayed, pump running
faster than set runaway
limit.
Runaway error code does
not clear.
Exhausted fluid supply,
increased air pressure,
increase fluid output, set
point too low.
Solenoid pin will not retract. Remove outer valve cover
Verify input air pressure, fluid
supply, fluid output, and
runaway set point.
(47-287844) and solenoid
(140-NXT403) to see if pin is
fully retracted.
Verify air pressure has be removed, wait
30 seconds then press reset. See
Runaway on page 12, manual.
Replace solenoid (140-NXT403).
311238ZAM 15
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