Dean D Installation & Operation Manual

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Dean D Installation & Operation Manual Manual pdf 50 page image

HIGH EFFICIENCY DECATHLON (HD) SERIES GAS FRYERSCHAPTER 8: TROUBLESHOOTING8-28.1 Pilot Burner Malfunction (cont.)C. Pilot flame of proper size, but is unstable. Flame wavers and does not envelope thethermocouple completely at all times. Check for drafts that might be caused by air conditioning equipment or make-up airapparatus. Turn air-moving equipment off and recheck the pilot.8.2 Main Burner MalfunctionsA. Main burner will not come "ON"; gas not detected at main burner.1. Check that the gas valve is open.2. Check that the pilot is ignited and is operating properly.3. Authorized Servicer Only: Check the high-limit switch for continuity.4. Authorized Servicer Only: Check the combination gas valve and replace if defective.B. Main burner flames are small and appear lazy; shortening does not come up to temperaturequickly. Authorized Servicer Only: Check gas pressure at the pressure tap of the gas valve. Usedial type or standard water-type U-gauge manometer. With burner in operation, thepressure should be 4" W.C. for D and HD models utilizing natural gas. The pressureshould be 11" W.C. for D models and 10" W.C. for HD models utilizing propane. If not,remove the pressure regulator adjustment cover. Use screwdriver to turn the adjustingscrew for proper pressure. Replace cover, re-check pressure and re-install pressure tapplug.C. Signs of excessive temperature; shortening scorches and quickly becomes discolored.1. Check operating thermostat. May be out of adjustment or calibration. Recalibrate ifnecessary.2. Check gas pressure as outlined above.3. Shortening used is of inferior quality and/or shortening has been used too long. Replaceshortening.4. Ensure frypot is clean when refilling with new shortening.

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