Troubleshooting For Gas Valves; Troubleshooting For Flue Blower - Addison UHA 150 Installation, Operation & Service Manual

14.4 Troubleshooting for Gas Valves

14.5 Troubleshooting for Flue Blower

START
Does flue blower run
automatically when there
is a call for heat?
Yes
Does blower turn on and
off while burner is firing
Yes
continuously?
No
Blower Operating
TROUBLESHOOT ENDS.
For your safety and optimum heater performance, use only genuine replacement parts sold and supplied
by Addison.
Conduct start-up procedure as shown on Page 27, Section 11.
START
Is gas pressure at inlet of the
valve correct for gas type?
Note pressure found.
Yes
Does gas pressure at outlet
of the valve rise when
valve turns on?
Yes
Yes
Does gas pressure at
outlet of valve return to zero or
lower when valve turns off?
Yes
Valve Operating
TROUBLESHOOT ENDS.
Correct power
No
supply problem.
Yes
Blower motor faulty.
Replace with correct type.
Check blower motor leads
for loose connections.
If problems persist, contact
Addison at
No
www.addison-hvac.com
Fault elsewhere.
No
Correct pressure problem.
Valve or ignition control
No faulty. Replace with
one of correct type.
Valve faulty.
No
Replace with one of
correct type.
If problems persist, contact
Addison at
No
www.addison-hvac.com
SECTION 14: T
ROUBLESHOOTING
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