FH2G
–
Express Dryer
Installation, Operation and Maintenance Manual
13 |
P a g e
TROUBLESHOOTING
ISSUE
Panel will not power-up
Check connection plug / disconnect for damage and
connection
Ensure MODE/START button is being held for at least 3-5
seconds
Check cord termination point inside rear access cover
Check 5.0A Fuse behind main control panel
No Heating
Ensure that FAN and HEATING is selected
If ambient is >90F, unit may self limit heating operations to
ensure total heat is <105F
Check for “Thump” of heating contactor pulling in when
START/STOP is pressed indicating contactor is closed. (See
Contactor)
Open rear tunnel cover and check for damaged wiring or
damaged copper strips
Check continuity of snap disc. “OL” indicates brea
k
Limited Heating / Excessive Dry
Time
Unit may have high ambient temperature.
Unit may have gear loaded unevenly or with very high
water content. Check that cleaning process or extractor is
working correctly.
Check rear panel with IR Gun to determine if cold spots
exist across elements. May indicate burnt or damaged
element.
Remove rear panel and individual check resistance reading
(ohms) of each element. Original reading is marked on
element. Should be between 48-58 ohm.
Check ducting, plenums and inlets for blockages.
Contactor Not Closing
Check connection (Blue and White Wires) to pull down and
check for +12V between terminals when active. May
indicate control board relay failure
Press contactor button to determine is circuit will close
manually. May indicate either control board relay or if the
contactor will not manually close, a failure of the contactor
No Fan
Check that FAN ONLY or FAN AND HEATING are selected
Check that fan is not jammed. If jammed look for screws in
venturi touching fan. Look for debris in fan housing
Check the 4.5A fuse behind the main control panel. This
fuse can fail due to impact to fan blades or resistance
Check wire tightness behind main control panel
Advanced: Check motor continuity by electrician
