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DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
CHDV37N/P AND CHDV41N/P
SERVICE HINTS
When Gas Pressure Is Too Low:
• pilot will not stay lit
• burners will have delayed ignition
• fireplace will not produce specified heat
• propane/LP gas supply might be low
(propane/LP units only)
When Gas Quality Is Bad:
• pilot will not stay lit
• burners will produce flames and soot
• fireplace will backfire when lit
If you feel your gas pressure is too low or gas
quality is bad, contact your local natural or
propane/LP gas supplier.
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting. If
so, contact DESA International’s Technical
Service Department at 1-800-DESA LOG
(1-800-337-2564).
You can also visit DESA International’s
technical service web site at
www.desatech.com.
REPLACEMENT
PARTS
Figure 58 - Blower Wiring Diagram for Thermostat-Controlled Models
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.
Note:
Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized retailers of this product.
If they can not supply original replacement
part(s), call DESA International’s Techni-
cal Service Department at 1-800-DESA
LOG (1-800-337-2564).
When calling DESA International, have ready
• your name
• your address
• model and serial numbers of your fireplace
• how fireplace was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
Usually, we will ask you to return the defec-
tive part to the factory.
PARTS NOT UNDER
WARRANTY
Contact authorized retailers of this product.
If they can not supply original replacement
part(s), call DESA International’s Parts
Department at 1-800-972-7879 for referral
information.
When calling DESA International, have ready
• model number of your fireplace
• the replacement part number
Red
Variable
Fan Switch
Fan Switch
(N.O.)
Black
Black
Black
Black
Green
White
On
110/115
V.A.C.
Blower
Motor
Blower
Motor
Black
Off
1
2
Red