All installations and services must be performed by qualified service personnel.
APPENDIX C: TROUBLESHOOTING FLOWCHARTS
A. Heating System
Set thermostat subbase to "HEAT".
Does thermostat make contact?
No
Is room temperature
above thermostat setting?
Yes
Turn thermostat setting
above room temp.
No
Yes
Is the transformer supplying | Yes |
| |
24 VAC to the thermostat ? | Replace thermostat. |
No |
|
Are the thermostat wires connected | No |
Correct wire | |
properly? | connections. |
Yes
Is the control transformer
receiving 120 VAC?
No
Check input power,control system fuse,disconnecting switch and fuses (if equipped).
Yes |
Replace control transformer.
Is the inducer
blower operating?
No
Is there 24 VAC across
"TH" & "TR" terminals of the
ignition control module.
No
Check for continuity & proper connections
Yes
Yes
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