JLA Heavy Duty Tumble Dryers D120

If the dryer is to be shut down (taken out of service) for a period of time, the following must be performed:

1. Discontinue power to the dryer either at the external disconnect switch or the circuit breaker.

2. Discontinue the heat supply:

• GAS MODELS … discontinue the gas supply.

• SHUT OFF external gas supply shutoff valve.

• STEAM MODELS … discontinue the steam supply.

• SHUT OFF external (location furnished) shutoff valve.

WARNING: Discontinue power to dryer before attempting to reset hi-limit.

Is the burner hi-limit open prior to the start of the drying cycle?

Is the burner hi-limit open during the cycle?

If the burner hi-limit is open, the dryer will start or continue through the drying cycle with no heat.

Is there improper burner operation?

The location of the burner hi-limit is on the left side of the burner box, looking at the burner from the back of the dryer.

Did you discontinue power to dryer before attempting to reset hi-limit?

Warning: Discontinue power to dryer before attempting to reset hi-limit.

Is the burner hi-limit open prior to the start of the drying cycle?

If the burner hi-limit is open, the dryer will start momentarily and then shut down.

The Phase 7 computer will display “BURNER HIGH LIMIT FAULT” with an audio indication.

Did the burner hi-limit open during a drying cycle?

If the drum temperature is above 100°F (38°C), the dryer will continue to run with no heat for 3 minutes or until the drum temperature has dropped below 100°F (38°C).

The CLEAR/STOP button on the Phase 7 keypad must be pressed to clear the error condition.

The open burner hi-limit must be reset “manually” prior to the start of the next cycle.

Was the lint drawer/screen cleaned every third or fourth load?

Warning: The accumulation of lint in the exhaust ductwork can create a potential fire hazard. Do not obstruct the flow of combustion and ventilation air.

Inspect and remove lint accumulation in customer furnished exhaust ductwork system and from dryer’s internal exhaust ducting

Check customer furnished back draft dampers in the exhaust ductwork

Inspect and remove any lint accumulation, which can cause the damper to bind or stick

A back draft damper that is sticking partially closed can result in slow drying and shut down of the heat circuit safety switches or thermostats.

If the hi-limit trips due to a high temperature occurrence, you must disconnect power before resetting. To reset, press and release the reset button, which is located on the left side of the burner box, looking at the burner from the back of the dryer.

When cleaning the dryer cabinet(s), avoid using harsh abrasives. A product intended for the cleaning of appliances is recommended.

Check all V-belts for tightness and wear. Retighten, realign, or replace V-belt if required.

NOTE: Replace in matched sets (both belts).

WARNING: Lint from most fabrics is highly combustible. The accumulation of lint can create a potential fire hazard. Keep dryer area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

NOTE: Remove power from the dryer before performing any maintenance in the dryer. Suggested time intervals shown are for average usage which is considered six to eight operational (running) hours per day.

IMPORTANT: The dryer produces combustible lint and must be exhausted to the outdoors.

Dryer area clear and free from combustible materials, gasoline, and other flammable vapors and liquids?

Enter the operational (running) hours per day

Exhaust ducting inspected and lint build up removed?

Sign off on the inspection and cleaning