Hatco MPWS-36 [9/24] Troubleshooting guide

Hatco MPWS-36 [9/24] Troubleshooting guide
Symptom Probable Cause Corrective Action
Overhead heat is too hot. UPPER HEAT control knob(s) set too high. Adjust UPPER HEAT control knob(s) to a lower
setting.
UPPER HEAT control(s) defective. Contact Authorized Service Agent or Hatco for
assistance.
Unit plugged into incorrect/high voltage. Verify that voltage supply matches electrical
information listed on the unit.
Overhead heat is not hot
enough.
UPPER HEAT control knob(s) set too low. Adjust UPPER HEAT control knob(s) to a higher
setting.
UPPER HEAT control(s) defective. Contact Authorized Service Agent or Hatco for
assistance.
Heating elements not working. Contact Authorized Service Agent or Hatco for
assistance.
Excessive air movement around warming
station.
Relocate unit or redirect air movement (i.e. air
conditioning duct or exhaust fan) away from unit.
Base heat is too hot. BASE HEAT control knob set too high. Adjust BASE HEAT control knob to a lower setting.
BASE HEAT control defective. Contact Authorized Service Agent or Hatco for
assistance.
Unit plugged into incorrect/high voltage. Verify that voltage supply matches electrical
information listed on the unit.
Base heat is not hot
enough.
BASE HEAT control knob set too low. Adjust BASE HEAT control knob to a higher
setting.
BASE HEAT control defective. Contact Authorized Service Agent or Hatco for
assistance.
Base heating element not working. Contact Authorized Service Agent or Hatco for
assistance.
Excessive air movement around warming
station.
Relocate unit or redirect air movement (i.e. air
conditioning duct or exhaust fan) away from unit.
No heat. Heating elements not working. Contact Authorized Service Agent or Hatco for
assistance.
Temperature controls not working properly. Contact Authorized Service Agent or Hatco for
assistance.
Unit plugged into incorrect/low voltage. Verify that voltage supply matches electrical
information listed on the unit.
No heat and no lights. POWER ON/OFF (I/O) switch turned OFF (O). Move POWER ON/OFF (I/O) switch to ON
position.
Unit not plugged in or outlet not working. Plug in unit, have outlet repaired by a certified
electrician, or use a different outlet.
Circuit breaker tripped. Reset circuit breaker. If circuit breaker continues
to trip, contact Authorized Service Agent or Hatco
for assistance.
ON/OFF Switch defective. Contact Authorized Service Agent or Hatco for
assistance.
TROUBLESHOOTING GUIDE
Form No. MPWSM-0115
9
English
Unit must be serviced by trained and qualified personnel
only. Service by unqualified personnel may lead to electric
shock or burn.
WARNING
ELECTRIC SHOCK HAzARD: Turn OFF power switch,
unplug power cord, and allow unit to cool before
performing any cleaning, adjustments, or maintenance.
WARNING

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