TROUBLESHOOTING GUIDE
5-4
Warm compartment
temperature (continued).
Compartment temperature
too cold.
Lighting inoperative.
Questions:
Are the lights out?
Is door alarm beeping with
door shut?
Poor Air Baffle operation
700TR, 700TC/I, 700BR only.
1. Air baffle obstruction.
2. Air baffle faulty.
Sealed system issue.
Electronic Control function.
1. Control set too cold.
2. Zone thermistor shorted.
NOTE: If a thermistor is
unplugged or replaced, the unit
must be turned OFF at the master
power switch, then turned back
ON to clear the error mode.
Poor air ducting.
1. Air leakage past vertical duct
dividers.
2. Air duct restriction.
Halogen lamp(s) faulty.
1. Lamp(s) burnt out.
1. Clean foreign material from baffle so it
slides freely.
2. At control board, with baffle harness dis-
connected from P4, check resistance of
baffle coils (2 per baffle). Resistance
across any two leads of baffle should be
between 5-25 ohms. (See wiring dia-
gram for unit being serviced.) If resis-
tance is outside range, repair wiring or
replace baffle.
See SEALED SYSTEM TROUBLESHOOT-
ING GUIDE.
1. Press “ZONE” key to check setpoints.
Zone indicator will flash. Displayed
temperature is now the setpoint. Set
zone(s) to warmer temperature(s).
2. If “-55-” is displayed with zone indicator
flashing, thermistor in that zone is short-
ed. Repair wiring or replace thermistor.
NOTE: Resistance of thermistor should be
approximately 32500 ohms at 32
o
F, 10000
ohms at 77
o
F.
1. See TC/I Air Seals at end of
Troubleshooting Guide.
2. Adjust vertical duct divider(s) and/or
remove blockage.
1. Visually inspect the lamp(s) for signs of
burn-out and replace if required.
Complaint Possible Cause Correction
GENERAL TROUBLESHOOTING GUIDE
CAUTION! Low voltage.
DO NOT apply 115 volts.
CAUTION! Low voltage.
DO NOT apply 115 volts.
CAUTION! Lamps very
hot. Allow to cool before
inspecting.
To Next Page
Loading...
Need help?
General
