TROUBLESHOOTING
1.
Blower motor – heats up and trips out thermal protector on motor or the main breaker
on power source.
A. Belt tension too tight
Loosen belt (1/2” – 1” deflection)
B. Electrical supply wiring & distance exceeded
Install correct wire gauge, usually larger
C. Blower bearing will not turn freely
Replace or oil bearings
D. Bad motor (amp draw, shorted…)
Take motor to authorized repair center or replace
E. Higher amp draw due to lack of air restriction
Replace or reinstall blower inlet guards (increase outlet restriction on furnace)
2.
Blower motor – does not start
A. Reset button or auto-reset device on motor
Push in to reset (manual)
Allow motor to cool, reset will be automatic
B. Bad motor
Take motor to authorized repair center or replace
C. Fan & limit switch (defective)
Check settings (factory 90°/ 110°/ 170°) or replace
D. Loose wire or connection
Tighten / secure as required
3.
Blower shakes (vibrations)
A. Belt tension/condition
Correct tension or replace belt
B. Pulley condition
Check for split, worn or bent pulley
C. Blower bearing
Replace as required
D. Blower wheel condition / dust build-up
Replace or clean, check for missing balance weights
18
Summary of Contents for ROYAL HEAT 240
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