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White-Rodgers M30 Thermostat Instruction Manual
TROUBLESHOOTING
8
Symptom
No Heat
Possible Cause
Corrective Action
1. Blown fuse or tripped circuit breaker.
2. Furnace power switch to OFF.
Replace fuse or reset breaker.
Turn switch to ON.
3. Furnace blower compartment door or
panel loose or not properly installed.
Replace door panel in proper position to engage
safety interlock or door switch.
4. Pilot light not lit.
Re-light pilot.
5. Broken or melted anticipator wire.
Excessive current or dead short in system. Have
a qualified service person check the system.
6. Loose connection to thermostat
or system.
Verify thermostat and system wires are securely
attached.
7. Thermostat or heating system re-
quires replacement or service.
Your furnace manufacturer or service person
can describe how to test the heating system
to verify it is operating correctly. If the heating
system is capable of operation and the no heat
condition persists, replace the thermostat.
Intermittent Heat
1. Furnace Lock-Out Condition
Many furnaces have safety devices that shut the
system down when a lock-out condition oc-
curs. If the heat works intermittently contact the
furnace manufacturer or local service person for
assistance.
Heat Runs Constantly.
1. Possible short in wiring.
Check each wire connection to the thermostat
to verify it is neatly looped under the terminals.
No extra wire should stick out from under the
terminals.
2. Possible short in thermostat.
3. Possible short in heat system.
Furnace Cycles Too Fast or Too Slow See Step 5, Adjusting the Anticipator.
The anticipation setting is the only adjustment
that effects the heating cycle rate. If an ac-
ceptable cycle rate is not achieved using the
anticipator contact a local service person for ad-
ditional suggestions. The location of the thermo-
stat, size of the Heat/Cool System and current
draw can influence the cycle rate.
Narrow or wide temperature swing
Thermostat Setting and Thermostat
Thermometer Disagree
1. Thermostat thermometer setting
requires adjustment.
The thermometer can be adjusted by using a
standard slotted screwdriver. Turn the thermom-
eter pointer screw located inside the front cover
to change the setting. For calibrating the setting
lever contact a local heating and cooling service
person.
2. Thermostat setting lever requires
calibration.
Adjusting Thermometer
3. Thermostat thermometer disagrees
with other room thermometers.
The thermometer on the thermostat is accurate-
ly calibrated at our factory but you can adjust it
by using a standard slotted screwdriver. Turn the
thermometer pointer screw located inside the
front cover to change the setting.
FOR CALIFORNIA RESIDENTS
Warning: This product contains a chemical known to the state of California to cause cancer and birth defects and other
reproductive harm.
| General | Details |
|---|---|
| Name | White-Rodgers M30 Thermostat Instruction Manual |
| Make | WHITE RODGERS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.18 MB |
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