S U F S E R V I C E H A N D B O O K
E R R O R C O D E S
ERROR CODES
CODE INDICATION
00This is normal operation, 00 is displayed each time the heater is powered up. Indicates the pressure switch circuit was not open during the prediagnostic system
check when the proper state of the Draft Prover Switches are verified. The Blower
01Prover Switch is normally open, the circuit should therefore be open during the prediagnostic system check at the beginning of each cycle. Check Blower Proving Switch for continuity with the blower off, there should be no continuity, check pressure switch wiring.
02Indicates the heater failed to light after 3 trials. Check ignitor, gas pressure.
04Indicates the ECO is open. Check water temperature in tank, ECO will open at 202° F and can be reset below 160° F.
05Indicates a Temperature Probe is open. Check both probes for proper resistance and continuity.
Indicates the Pressure Switch Circuit did not close after blower was energized.
Check normally open Blower Prover Switch operation, check normally closed
11Blocked Outlet, Inlet, and Low Gas pressure (SUF 240 only) to ensure they remain closed. Check for blocked vent pipe (s) or if equivalent feet venting limits have been exceeded.
15Indicates temperature sensed by probe(s) is out of bounds, reading is less than 30° F. Check resistance of temp probes, check water temperature in tank.
22Indicates Ignition Relay failure. Should be off and it is on. Try resetting, turn power off and on, if code remains, replace board.
25Indicates temperature sensed by probe(s) is out of bounds. Reading is more than 220° F. Check resistance of temp probes, check water temperature.
CODE #S | Internal software or hardware errors, electrical line noise can cause erratic | |
operation and these error codes. Try adding a “line filter” (available from electrical | ||
ABOVE | ||
suppliers) to the 120 VAC power supply. If these errors codes persist or the control | ||
199 | ||
cannot be reset, replace the control board. | ||
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All these errors cause a “soft” lockout with the exception of 04 - ECO, which is a “hard” lockout. Soft lockouts will reset automati- cally after 60 minutes or if the reset button is pushed at any time. The ECO lockout, error code 04 will have to be manually reset by pushing the rest button after water in the tank has cooled below 160° F.
State Water Heaters | 39 | Technical Training Department |
Ashland City, Tennessee © 2004 |
