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SCR-6/8
1-3. TROUBLESHOOTING (Continued)
Problem Cause Correction
Product not done
• Low or improper voltage • Use a meter and check the
receptacle against data plate
• Weak or burnt out elements • Check heating element(s) per
Radiant Heaters Section
• Points in contactor bad • Check contactor per Contactor
Section
• Bad relay • Replace relay per Relays Section
• Wire(s) loose • Tighten
• Burnt or charred connector • Replace wire and clean connectors
Unit overheating • Probe not properly in position
• Check probe position; see Thermal
(product too dark) Sensor Replacement Section
• Check probe calibration • If probe is more than 10
o
F out of
calibration, replace probe
• Faulty control board • Replace control board per Control
Board Replacement Section
• Check contactor for not • Check for faulty contactor per
opening Contactor Section
Timers fail to run, or
• Low voltage • Check voltage at receptacle to
won’t turn off match unit voltage
• Check voltage at transformer
• Faulty display board • Replace display board
• Indented or torn decal • Replace control decal
Timer will not beep
• Faulty speaker • Replace speaker per Speaker
Replacement Section
1-4. ERROR CODES - The control has built-in self-diagnostic error codes that will show on the display.
Error Code Cause Correction
“E-6” Prob Err
• Temperature probe failure • Reconnect probe to board, or
replace probe
“E-4” ctrl hot
• Control board temperature too hot • Replace or clean blower
“E-50” CPU Chip
• CPU RAM error • “E-50”, “E-51”, “E-53”, & “E-41”
“E-51” rA-CHIP
• External RAM error are software errors
“E-53” ro-CHIP
• External ROM error • Reinitialize the board, and if error
data Err
• Scrambled memory persists, replace “E-41” board
“E-5” too hot
• Software high limit (air temperature • Change control board or contactor
too hot)
• Replace blower
803 1-3