551275 Booster Circuit Fault Finding - Chart 8 - Rheem 55027500 Service Instructions Manual

551275 Booster Circuit Fault Finding - Chart 8

8
Test 15 - 551275 models
Test 15A - 551275/A models
Are
the thermostat
ECO contacts
closed?
YES
Test 16 - 551275 models
Test 16A - 551275/A models
Are the
thermostat contacts
closed?
YES
Test 17 - 551275 models
Test 17A - 551275/A models
Does
the element
have the correct
resistance?
YES
Test 18
Is the
overall resistance
of the booster circuit
correct?
TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C
Date of Issue: 5/11/05
This document is stored and maintained electronically by
NO
NO tank at least 6 degrees lower
Slide the thermostat out
from under the retaining
clamp and allow to cool
YES
YES Booster circuit electrically ok
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
Is the
element installed
in the correct
orientation?
YES
Is the
water in the
than the thermostat
setting?
NO
Test 16 - 551275 models
Test 16A - 551275/A models
Did the
thermostat contacts
close?
NO
NO
33
Install the element correctly
NO
and reset the ECO
551275 models
Replace thermostat
551275/A models
Reset ECO thermostat
Replace Robertshaw
EWT1A1-2 thermostat
YES
Replace thermostat
NO
Replace element
Locate wiring failure and
repair
3