These values should be within 10 degrees of each other. With the unit off for at least 1 hour, go to the Info mode of the boiler. If we are not developing the correct negative pressure, the system may be blocked in the combustion area or exhaust lines, or the blower is not developing the correct amount of airflow.Ĭheck to see if a sensor is far out of calibration or moving in a direction un-compatible with the process that the controller is presently running. at a minimum to pull gas through the gas valve. During the pre-purge you must develop 1.5 to 2 inches W.C. When the gas valve opens for ignition, the pressure is not allowed to deviate more than one inch W.C.ĥ) A final test if we cannot create fire, attach the manometer to the outlet port of the gas valve. N.G should have approximately 6 to 7 inches and L.P should be approximately 11 inches.
A large amount of black residue inside the venture would indicate the venturi has started too broken down and needs to be replaced.Ĥ) With the gas valve turned off, check the incoming gas pressure on the gas valve of the unit. After many ignitions and or subjection to high temperatures, it may be recommended to replace the igniter when you have failed ignition issues.Ģ) Check the connections of the igniter wire, be sure they are strong connections and that the wire is not in contact with any metal surface.ģ) Remove the air intake pipe from the burner, inspect the venturi, feel the inside rim of the air inlet hole, it should be pristine, tight in the shroud, no holes, no breaks, no cracks. The cause can be traced to just a few basic conditions.ġ) Remove and inspect the igniter. This is an indication that there is a problem with the outdoor sensor or the wire for the outdoor sensor. Then reset the boiler, if the boiler resets and shows the b40 and the 9#, then replace the X04, reset the boiler and operation should commence. If the E-14 does not disappear when the X04 is removed remove the X05 plug. They are not being used, so they may remain isolated and insulated If the fault clears, isolate and insulate each of the wires. If the E-14 comes right back, replace the wires on the flue sensor, then remove the wires in the top of terminals 17 and 18 (one has a blue and a yellow wire in it, the other has a single blue) let them hang in the air, reset the boiler. If the b-40 and 9# returns, replace the flue sensor. Remove the 2 yellow wires from the flue sensor, reset the boiler. Since the E14 stopped when the X04 was removed and now is back in place. Be sure to look carefully how the plug is connected and when re-connecting it, be sure to put it back the same way you removed it.) Reset the boiler, if the E-14 goes away and is replaced with a b-40 and a 9-# reconnect the X04, if it immediately goes to E14. (This is the plug with 2 blue wires and 1 yellow wire. Remove the X04 plug from the MCBA module. If the E14 goes away, one by one re-install the field to see what field device is affecting the boiler. Remove the entire field wires connected to terminals 7 through 19.
#Hot water heater serivice code soft lock out code 62 software
When the reset button is pressed and released, the E-14 should disappear, and a software code show up, once that clears, the E-14 will re-appear we now know the reset works. It is important to be sure that the reset is working. This will now allow the boiler to see the actual temperature in the tank and determining when to go into water heating operation.Ģ) This disturbance is far more difficult to pinpoint. The dry contact water heater’s aqua-stat should be replaced with a PSRKIT-22 Triangle Tube IDHS. E 14 returns in an un-predictable time frame.Ģ) Does the unit reset, but goes to E 14 with-in 5 seconds.ġ) This often is caused by the dry contact in the aqua-stat in the domestic water heater. This is separated into two parts.ġ) The unit resets and begins to work. E-14 is a disturbance on the low voltage side of the system.