Installation manual

TROUBLESHOOTING CHARTS
TROUBLE COMMON CAUSE REMEDY
UNIT WILL NOT RUN. Blown Fuse. Check power for “live” circuit. If outlet is
“dead” but building has power, replace the
fuse. Try to determine the cause of the
overload or short circuit
Low Voltage. Check outlet with voltmeter. Should check
115V plus or minus 10%.
If circuit is overloaded, either reduce load or
have electrician install separate circuit.
If unable to remedy any other way, install
auto-transformer.
Open motor or temperature control. Jumper across terminals of control. If unit
runs and connections are all tight, replace
control. Power element may have lost
charge or points may be dirty. Repair or
replace thermostat.
Open relay. Check relay. Replace if necessary.
Open overload. Check overload. Replace if necessary
Open compressor. Check compressor. Replace if necessary.
Open service cord. Check with ohmmeter at unit. If no circuit
and current is indicated at outlet, replace
or repair.
Broken lead to compressors or cold Repair or replace broken leads.
control.
Service cord not plugged in. Plug in cord.
CABINET TOO WARM. Thermostat position set too warm, not Turn knob to colder position.
allowing unit to operate often enough.
Fan motor not running. Check and replace fan motor if necessary.
Shortage of refrigerant Check for leaks. Repair, evacuate and
recharge system.
Not enough air circulation around Relocate cabinet or provide clearance to
cabinet. allow sufficient circulation.
Dirty condenser or obstructed Clean the condenser and the ducts.
condenser ducts.
Thermostat control capillary not Refer back to removal/installation
properly installed. instructions detailed in this manual.
TROUBLESHOOTING 95