Cres Cor CO-151-HUA-6B - Manual (Page 6)

Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
Ovens FL-2271
Rev. 9 (9/08) Page 6 of 12
5925 Heisley Road • Mentor, OH 44060-1833
MAINTENANCE INSTRUCTIONS
TROUBLE-SHOOTING GUIDE
IF UNIT GETS TOO HOT OR WON’T SHUT OFF, DISCONNECT
POWER AT BRANCH PANEL. DO NOT UNPLUG CORD!
1. Cord is unplugged from wall outlet.
2. Circuit breaker/fuse to wall outlet is blown.
3. Switch is turned off.
4. Thermostat is turned off, or is set too low.
If hot unit is NOT working, fi rst check the following causes:
PROBLEM POSSIBLE CAUSE SOLUTION
Cabinet does not heat, or doesn’t heat
properly
1. Fuse
2. Control
3. Sensor
4. Heater contactor
5. Loose wiring at heater contactor
6. On/Off Switch 1. Replace
2. Replace
3. Replace
4. Replace
5. Replace
6. Replace
Blowers do not operate
1. On/Off Switch
2. Fuse
3. Blower 1. Replace
2. Replace
3. Replace
Heaters will not shut off
1. Thermostat defective
2. Contactor defective 1. Replace
2. Replace
Vent fans do not shut off
1. Vent fan switch defective
2. Control compartment is still hot.
1. Replace
2. Wait until it cools
Check “Heaters will not shut off”
Vent fans do not operate
(See Note)
1. Fuse
2. Vent fan switch defective
3. Vent fan defective 1. Replace
2. Replace
3. Replace
NOTE: Vent fans will not operate until the control compartment requires ventilation to limit temperatures.
Replacement of electrical components must be done by a qualifi ed electrician.
Refer to our Service Agency list, FL-1400 (found in the back of this manual), of authorized service
centers. Instructions for replacing parts are included in replacement parts list.
WARNING