Troubleshooting An "Fd" Error Code With A Fogatti Tankless RV Water Heater

Question

Question:

The fogatti insta shower 8 plus there a code last night , fd. What does that mean, I cannot find the code

asked by: Rob

0

Expert Reply:

When the temperature of the water pipe in the water heater is lower than 43°F the controller on your # LSB64FR will display “Fd”. Your unit is going into frost protection mode to avoid getting damaged. If you're not in freezing conditions and this is happening then either the controller or the circuit board for the unit is faulty. For faulty equipment you'd need to reach out to Fogatti for warranty repair/replacement.

expert reply by: Kevin C

0

Cathleen

2/6/2025

I am in temps below 42 degrees and giving the FD and the control panel is turning off. Do I leave the unit on or turn it off until temps rise?

Kevin C.

2/10/2025

@Cathleen You'll want to drain/winterize and leave the unit off until the temperature rises back up to prevent damage to your unit. It's super easy for the water lines in RV water heaters to freeze and blow out since they vent out from the trailer body and aren't enclosed with insulation.

Answer 1

RV water heaters are exposed to the outside since the only thing blocking the outside climate is just a thin metal access door with zero insulation. The Fogatti Tankless Water Heater #LSB64FR and all other brands aren't designed for use below…

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Answer 2

Since you have power to the wire you're connecting to the Fogatti RV Tankless Water Heater #LSB64FR, but the water heater itself doesn't have power, I recommend checking to make sure it is wired correctly. The 2 blue wires coming out the back…

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Answer 3

The Fogatti RV Tankless Water Heater #LSB64FR has a switch located inside the unit to the left of the exhaust vent. If this switch is off the unit will not operate. There's also a fuse right below it that you'll want to check before turning…

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Answer 4

If the ignitor isn't actually lighting up on your Fogatti Tankless Water Heater then either the propane isn't at the correct pressure or the ignitor is bad. I would start by having a technician check the gas pressure to ensure you're…

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Answer 5

The Owner's Manual states that the Fogatti #LSB64FR power consumption is 20 watts. In a 12V DC system that would be less than 2 amps. Assuming that there is not anything else on that circuit you can put a 5 amp fuse there. I would get the…

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Answer 6

A "0" error code means that your outlet temperature probe is open or shorted and a "4" error code means that your inlet temperature probe is faulty and the inlet temperature probe is open or shorted. I recommend checking that your…

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Answer 7

If you haven't already I recommend checking the power wire with a multimeter #PT89ZR to first ensure that you're getting a full 12 volts at the unit. From there you'll need to ensure that the fuse is fully inserted and screwed down and…

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Answer 8

The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs #RP85FR is a direct replacement for the Lippert 1621 HD pin box you have. This adapter will give you the bed rail clearance needed for your 2019…

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Answer 9

First I want to make sure you are using the correct opening on the Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter #RP85FR. In the image below the correct opening is the lower cap below the blue portion. This is the correct connection…

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Answer 10

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 11

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Troubleshooting An "Fd" Error Code With A Fogatti Tankless RV Water Heater

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