Eemax HA036240, HA027240, HA023240, HA018240 User Manual

EEMAX TROUBLESHOOTING GUIDE

MODELS COVERED: HA018240, HA023240, HA027240,

HA036240

THIS STEP BY STEP TROUBLESHOOTING GUIDE IS DESIGNED FOR
THE INSTALLER IF ANY ISSUES ARISE WITH TANKLESS WATER
HEATER.

YOU CAN ALSO VIEW A TROUBLESHOOTING VIDEO AT OUR WEB
SITE.

Step by Step Troubleshooting Guide

This Troubleshooting Guide will take you through simple steps to determine
any problems or issues with unit. This guide takes you through a sequence
of steps that MUST be followed to determine the exact problem.

All Eemax units have a simple design and are very easy to check with the
use of a MULTI CLAMP METER able to measure both Voltage and Amperage.

and write down the readings /results on the back pages so when
contacting Technical Support you have the information in hand.

Below is an image of a three heating chamber (3 elements) unit. Your
unit may have 2 elements or 4 elements. All the steps within the guide
are per element, so if you have two element, you make the test twice
(once per element), if you have 3 elements, test three times, and 4
elements, test 4 times.

HA018240 and HA024240

2 Heating chambers – 2 Heating elements

HA027240

3 Heating chambers – 3 Heating elements

HA036240

4 Heating Chambers – 4 Heating elements

This Guide is for use by Qualified Electrical Professional

You can contact our Technical Support at 800-543-6163 Mon-Fri 8:00 am—5:00 pm. EST. You can
visit our web site at

www.eemaxinc.com

or email us at [e-mail].

DISCONNECT ALL POWER TO UNIT BEFORE REMOVING

YOU MUST BE ABLE TO MEASURE
208/240 VOLTS ACROSS EACH SET
(L1 L1) (L2 L2) (L3 L3)(L4 L4) IF
YOU DO NOT THEN IT IS POSSIBLE
THE BREAKERS / WIRES ARE
CROSSED AND MUST BE
CORRECTED.

(EXAMPLE– L1-L1 READS NO
VOLTAGE, BUT L1- L2 GIVES YOU
VOLTAGE READING)

COVER.

STEP 1

ELECTRICAL CONNECTION

MODEL HA036240 IS SUPPLIED WITH A 8 PRONE TERMINAL BLOCK
MARKED (L1 L1) (L2 L2) (L3 L3)( L4 L4). MODEL HA027240 IS SUPPLIED
WITH A 6 PRONE TERMINAL BLOCK MARKED (L1 L1) (L2 L2) (L3 L3).
MODELS HA018240 AND HA024240 ARE SUPPLED WITH A 4 PRONE
TERMINALS BLOCK LABLED (L1 L1) (L2 L2)

EACH ONE OF THE CONNECTION SETS MUST BE CONNECTED TO AN IN­DEPENDENT DOUBLE POLE 40 AMP BREAKER. L1-L1 GOES TO ONE 40 AMP
DOUBLE POLE BREAKER, L2-L2 GOES TO ANOTHER 40 AMP DOUBLE POLE
BREAKER AND L3-L3 TO ANOTHER 40 AMP DOUBLE POLE BREAKER, AND
L4 L4 TO ANOTHER 40 AMP DOUBLE POLE BREAKER NOTE: SPACE SAVING
BREAKERS WILL NOT OPERATE PROPERLY

YOU MUST ENSURE THE SET OF WIRES FROM EACH LEG ARE NOT CROSSED

AT THE BREAKERS OTHERWISE THE
UNIT WILL NOT FUNCTION AS
DESIGNED. IN ORDER TO MAKE SURE
THE WIRING IS CONNECTED
CORRECTLY PERFORM THE
FOLLOWING TEST.

DISCONNECT ALL BREAKERS AT THE
SERVICE PANEL. ONCE ALL BREAKERS
HAVE BEEN DISCONNECTED MEASURE
THE VOLTAGE GOING TO EACH ONE
OF THE SETS (L1 L1) (L2 L2) (L3 L3 )

(L4 L4) ALL SHOULD READ 0 VOLTAGE.

NOW– TURN ON 1 BREAKER, IT DOES NOT MATTER WHICH ONE. ONCE ONE
BREAKER HAS BEEN TURNED ON, USING YOUR VOLTMETER PLACE ONE
PROBE ON L1 AND THE OTHER PROBE ON THE OTHER L1, MEASURE
ACROSS (L1-L1) YOU SHOULD GET A READING OF 208- 240V. DO THE
SAME FOR (L2-L2) AND (L3-L3) AND (L4 L4).

PERFORM THIS VOLTAGE READING ON ALL LEGS OF TERMINAL BLOCK
BOTH AT THE BOTTOM AND TOP OF TERMINAL BLOCK TURNING ON 1
BREAKER AT A TIME.

IF POWER GOING TO THE UNIT IS NOT CORRECT, THE UNIT WILL NOT
OPERATE CORRECTLY, SO IT IS IMPORTANT TO PERFORM THIS TEST
FIRST, BEFORE PROCEEDING.

THE PROBLEM MIGHT NOT BE AT THE UNIT, BUT AT YOUR ELECTRICAL
PANEL, OR BREAKERS.

NOW THAT WE HAVE VERIFIED THAT THE ELECTRICAL CONNECTIONS
ARE CORRECT, LETS CONTINUE.