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112127-01B
For more information, visit www.desatech.com
For more information, visit www.desatech.com
26
SERVICE HINTS
When Gas Pressure is Too Low:
• pilot will not stay lit
• burners will have delayed ignition
• burner system will not produce specified heat
• propane/LP gas supply might be low (propane/LP units only)
You may feel your gas pressure is too low. If so, contact your local
natural or propane/LP gas supplier.
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA’s Technical Service Depart-
ment at 1-866-672-6040. When calling, please have your model and
serial numbers of your heater ready.
You can also visit DESA’s technical service web site at
www.desatech.com.
WIRING DIAGRAM
CAUTION: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
REPLACEMENT PARTS
Note:
Use only original replacement parts. This will protect your
warranty coverage for parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If they can not supply
original replacement part(s), call DESA’s Technical Service De-
partment at 1-866-672-6040.
When calling DESA, have ready
• your name
• your address
• model and serial numbers of your stove and burner system
• how burner system was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
Usually, we will ask you to return the part to the factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If they can not supply
original replacement part(s), call DESA at 1-866-672-6040 for
referral information.
When calling DESA, have ready
• model number of your stove and burner system
• the replacement part number
Blue
Variable
Fan Switch
Fan Switch
(N.O.)
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off
1
2
Black
REPLACEMENT PARTS
TECHNICAL SERVICE
WIRING DIAGRAM
SERVICE HINTS
Figure 53 - Blower Wiring Diagram for Thermostat-Controlled
Models