GP GSWH-1, Руководство по обслуживанию, Страница: 15 / 18

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4.
Water Heater Lockout
– Gas present but no Spark
a.
High Tension Lead Wire Loose: Secure Wire Connection on Circuit Board
b.
Poor Ground Connection at Burner: Secure Ground Connection to Main Burner
c.
Improper Electrode Gapping: Re-position Spark Gap Between Electrode Tip and Burner
Blade to 1/8˝ and into Path of Flame
d.
Dirty Electrode: Clean Electrode
e.
Wires Loose in Electrode Porcelain: Replace Electrode
f.
Cracked Porcelain on Electrode: Replace Electrode
g.
Defective circuit board. CONFIRM with Approved Board Tester such as Fenwal part # 05-
080224-009) - Replace
5.
Water Heater Lockout
– Gas and Spark Present
a.
Check Gas Pressure: Set inlet pressure at a Minimum 11
˝ W.C. with Two or More Gas
Appliances Running.
b.
No or Low Voltage: Correct power supply - 10.5 VDC Minimum
c.
Poor Electrical Ground: Secure Electrical Ground
d.
Dirty Electrode: Clean Electrode
e.
Partial Obstruction in Main Burner: Check for Complete Ignition of Burner Blades through
Sight Hole. Remove any Obstructions.
f.
Partially Obstructed Burner Manifold: Clean Burner Orifices; Replace if Necessary
g.
Dirty Connector on Circuit Board: Clean Edge Connector
h.
Defective circuit board. CONFIRM with Approved Board Tester such as Fenwal part # 05-
080224-009) - Replace
6.
Erratic or Uneven Burner Flame
a.
Check Gas Pressure: Set inlet pressure at a Minimum 11
˝ W.C. with Two or More Gas
Appliances Running
b.
Partial Obstruction in Main Burner: Check for Complete Ignition of Burner Blades through
Sight Hole. Remove any Obstructions
c.
Obstructed Exhaust Tube Grill. Inspect and Remove any Obstruction
d.
Partially Obstructed Burner Manifold: Clean Burner Orifices; Replace if Necessary
7.
Excessive or Insufficient Water Temperatures; Water Not Hot or Water Cold
a.
Air is present in water lines: Purge Air from Water Lines
b
. Thermostat not Seated Against Sensing Tab: Reseat Thermostat and Add Thermal
Paste to Insure Good Contact
c.
Defective Thermostat: Replace Thermostat
d.
In Case of Excessive Temperature, Verify that the Maximum Flow is not Limited by a Flow
Restrictor