A FL-4 error is an ignitor failure. There are three things that need to be checked to correct the issue. First is the ignitor. Replace if broken or burnt or cracked. Second is the 220/120 vac conversion plug that is plugged into the main board in the burner compartment behind the box cover. The black transistor may be burnt. Replace if burnt. This will happen often if the heater is connected with 220 vac power source. I highly recommend connecting to a 120 vac source if possible. The heater seems to like it more. But remember when switching power supplies to follow all manufacturers instructions on doing so. If after replacing these two items the FL-4 problem still occurs, the control board in which the conversion plug plugs into also may need replacement. This should correct the fl4 error.
The black transistor is part of the " power conversion plug"(part name). This plug is a small 1"x1.5" board that plugs into the main control board. I has two colored ends on it. One blue, one red. Also some older model heaters. Have in-line fuses on the wires going to the ignitor. Check to see if these are blown.The black transistor is part of the " power conversion plug"(part name). This plug is a small 1"x1.5" board that plugs into the main control board. I has two colored ends on it. One blue, one red. Also some older model heaters. Have in-line fuses on the wires going to the ignitor. Check to see if these are blown.
Rewired to 120 and flipped conversion plug around cause I just bought a vs pump with external timer. Heater fired right up. Thanks so much!!!Rewired to 120 and flipped conversion plug around cause I just bought a vs pump with external timer. Heater fired right up. Thanks so much!!!
FL4 is an igniter error. You can attempt to repair it yourself following some of Jandy's remedy's from the owner's manual, found on page 40. Electronic heater ignition problems are generally better left to a pro. For a local service provider, try their search page here.
Answers & Comments
A FL-4 error is an ignitor failure. There are three things that need to be checked to correct the issue. First is the ignitor. Replace if broken or burnt or cracked. Second is the 220/120 vac conversion plug that is plugged into the main board in the burner compartment behind the box cover. The black transistor may be burnt. Replace if burnt. This will happen often if the heater is connected with 220 vac power source. I highly recommend connecting to a 120 vac source if possible. The heater seems to like it more. But remember when switching power supplies to follow all manufacturers instructions on doing so. If after replacing these two items the FL-4 problem still occurs, the control board in which the conversion plug plugs into also may need replacement. This should correct the fl4 error.
The black transistor is part of the " power conversion plug"(part name). This plug is a small 1"x1.5" board that plugs into the main control board. I has two colored ends on it. One blue, one red. Also some older model heaters. Have in-line fuses on the wires going to the ignitor. Check to see if these are blown.
Rewired to 120 and flipped conversion plug around cause I just bought a vs pump with external timer. Heater fired right up. Thanks so much!!!
FL4 is an igniter error. You can attempt to repair it yourself following some of Jandy's remedy's from the owner's manual, found on page 40. Electronic heater ignition problems are generally better left to a pro. For a local service provider, try their search page here.