Piper 3-CM - Manual (Page 11)

TROUBLESHOOTING GUIDE
If problems are not found by the following checks, then you should contact your Authorized Parts and
Service Dealer for service. They have the necessary parts and training to repair your unit quickly and
efficiently
DANGER: Disconnect all power to unit before servicing.
Problem: Pilot light is off and condensing unit does not run.
1. Has unit been connected to proper electrical receptacles?
2. Is electric turned on at the main? Check the circuit breaker and fuse.
3. Is switch in control panel turned on?
Problem: Pilot is on but condensing unit does not run.
1. Is pressure control set properly?
Problem: Unit does not cool to proper temperature.
1. Is pressure control set to proper setting?
2. Has unit been allowed to pre-cool for at least 30 minutes?
3. Are there heating or air conditioning ducts, make-up air ducts or fans located near or over unit
causing cool drafts?
4. Is unit connected to proper voltage? If so, is there a "low" voltage condition?
Problem: Unit does not maintain food temperature.
1. Is pressure control set to proper setting?
2. Has unit been allowed to pre-cool for at least 30 minutes?
3. Were pans of food placed into unit at or below 38° Fahrenheit?
4. Were food pans kept covered? Has food been kept in the unit more than two hours?
5. Are there heating or air conditioning ducts, make-up air ducts or fans located near or over unit
causing cool drafts?
6. Is unit connected to proper voltage? If so, is there a "low" voltage condition?
Problem: Protector guard lights do not work.
1. Has switch located at the end of the protector guard under the canopy been turned on?
2. Is the base unit turned on and the pilot light on?
3. Has unit been connected to proper electrical receptacle?
4. Is electric turned on at the main? Check the circuit breaker and fuse.
5. Has the protector guard been installed and wired according to the installation
instructions on earlier pages of this manual?
6. Are the light bulbs burned out?