Hotpoint Dryer E4 Error Code: Causes, Cost & Fix

What is the Hotpoint Dryer E4 error?#

E4 on a Hotpoint dryer is a heater relay fault, and it is the code I treat most seriously: unplug the dryer immediately, because a relay stuck closed means the heating element cannot be shut off by the control board. The board has self-diagnosed that its own heater relay is welded or failing. If the dryer keeps heating after a cycle ends, that is the stuck relay, and it is a fire hazard until the machine is off.

E4 on a Hotpoint Dryer: likely causes and repair cost#

On a Hotpoint Dryer, the E4 code signals: heater relay fault.

Typical professional repair: $175–$350 · Difficulty: hard · usually a technician job

Symptoms that often accompany E4: Dryer continues heating after cycle ends; Burning smell from control area; Dryer will not turn off heating

Technician diagnostic sequence for E4:

1. Unplug dryer immediately — a stuck relay is a fire hazard
2. Inspect main control board for visible burn marks or swollen capacitors near the heater relay
3. Measure heater element resistance — excessively low reading indicates element drawing too much current
4. Replace main control board — E4 is a self-diagnosed relay fault

Parts a technician may check or replace: main control board

Field note: If the dryer continues heating after the cycle ends, the relay is welded closed. Unplug immediately and replace the board.

Safety note: SAFETY CRITICAL — a stuck heater relay means the heating element cannot be turned off by the control board. Unplug immediately.

How to troubleshoot the E4 error yourself#

The honest answer here is that E4 is not a DIY fix — it is a safety stop. Unplug the dryer first and leave it unplugged. If you open the console, you may see burn marks or swollen capacitors on the main control board near the heater relay, which confirms the diagnosis, but the repair is a board replacement and the fault is inside a component you cannot safely rework. A technician will also measure the heating element resistance, because an element drawing excessive current can be what damaged the relay in the first place. There is no clearing this code with a reset — E4 is a self-diagnosed relay fault, so the board is replaced rather than reset. The only DIY step that matters is the first one: pull the plug and keep it out until the repair is done.

Is the Hotpoint Dryer E4 error worth fixing?#

E4 is worth repairing, though it is the priciest of the Hotpoint dryer codes because it involves the main control board. The table above lists $175–$350 for the professional job, largely the board itself plus the labor to fit it. Even at the top of that range it is well under a new dryer, and because the alternative is a machine that cannot stop heating, this is a repair I would not defer. Replacement only makes sense on an old dryer that is also failing in the drum, motor, or bearings.

Hotpoint Dryer E4: frequently asked questions#

What does the E4 error mean on a Hotpoint Dryer?#

It means the heater relay on the control board has faulted, often stuck closed so the heat cannot be turned off. The board self-diagnoses this and posts E4.

Is it safe to keep using a Hotpoint Dryer that shows the E4 error?#

No — unplug it immediately. A stuck heater relay is a fire hazard because the element cannot be shut off by the board.

Can I clear the E4 error myself, or do I need a technician?#

This one needs a technician. There is no reset for a self-diagnosed relay fault; the main control board must be replaced. Your only job is to unplug the dryer.

How much does it cost to repair the E4 error on a Hotpoint Dryer?#

A professional repair runs $175–$350 per the table above, mostly the control board and labor to fit it. It is still well under the cost of a new dryer.

Which parts usually fail when a dryer throws the E4 code?#

The main control board with its heater relay is the part that fails. A heating element drawing too much current can be the underlying reason the relay failed.

Is a Hotpoint Dryer with the E4 error worth repairing?#

Yes, and without delay given the safety issue. At $175–$350 it beats replacement unless the dryer is old and failing elsewhere.

Why does a stuck control board relay trigger the E4 error?#

The relay switches the heating element on and off. When it welds closed the element stays powered, the board detects the fault it can no longer control, and it posts E4.