Primus D55, Service Manual, Page: 16 / 82

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Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
W002
WARNING
10. CLOTHES DO NOT DRY
11. TUMBLER OVERHEATING
POSSIBLE CAUSE TO CORRECT
Heat source inoperative. • Refer to Paragraph 17.
Too much water in articles being dried. • Remove excess water.
Clothes load too large. • Remove part of load. 120 pounds dry weight (AHAM
cotton load) is maximum load.
Improper or inadequate exhaust system. • Refer to Installation Manual for exhaust requirements.
Heat source shuts off prematurely. • Refer to Paragraph 18.
Drying timer improperly set. • Set selector for higher setting.
Incorrect voltage. • Refer to Installation Manual for electrical requirements.
Inadequate make-up air. • Refer to Installation Manual for make-up air
requirements.
Improper fan rotation. • May be due to improper wiring resulting in low airflow.
Refer to Installation Manual.
POSSIBLE CAUSE TO CORRECT
Gas Models: Incorrect main burner orifices. • Replace orifices.
Gas Models: Gas pressure too high. • Adjust gas pressure as specified on serial plate.
Steam Models: Steam solenoid valve stuck open. • Clean solenoid valve and replace if necessary.
Inadequate make-up air. • Refer to Installation Manual for make-up air
requirements.
Lint accumulation. • Remove lint.
Restricted or inadequate exhaust system. • Remove obstruction or lint build-up from exhaust
ductwork. Refer to the Installation Manual for exhaust
system requirements.
Inoperative thermostat. • Replace thermostat.