Hotpoint Dryer: How to Access and Clean a Deeply Clogged... | appliancefaults.com

Technical Background:

The dryer's control board (MCU) monitors temperature sensors to determine drying time. Restricted airflow due to a clogged lint filter housing causes the dryer to overheat, triggering the high-limit thermostat and extending drying times. The MCU uses thermistors to monitor exhaust temperature, and the heating element is controlled by relays on the MCU board.

Symptoms:

The homeowner notices the dryer is taking longer than usual to dry clothes. Clothes may be damp or hot to the touch after a full drying cycle. There may be a burning smell. The lint filter is clean, but the dryer still isn't drying properly.

Possible Causes:

Excessive lint buildup due to infrequent filter cleaning.
Dryer vent blockage restricting airflow.
Damaged or deteriorated lint filter allowing lint to bypass.
Small articles of clothing or debris lodged in the housing.

Solution:

1

Unplug the dryer from the outlet. Verify no voltage is present with a multimeter.
2

Locate the lint filter housing on the dryer. Remove the lint filter.
3

Use a long, flexible brush or vacuum attachment to remove any visible lint from the housing. Try a dryer lint vent cleaning kit with a flexible hose.
4

If the clog persists, partially disassemble the dryer cabinet (refer to the dryer's service manual). Usually, this involves removing the top panel or front panel using a 1/4-inch nut driver.
5

Once the cabinet is open, locate the ductwork leading from the lint filter housing to the blower fan. Disconnect the ductwork and remove any obstructions.
6

Reassemble the dryer cabinet and test the dryer's performance.
7

Verify proper airflow from the outside vent using an anemometer, ensure at least 400 ft/min air velocity.

Safety Warning:

Disconnect power to the dryer at the breaker panel before performing any repairs. Use Lock-Out Tag-Out (LOTO) procedures. Capacitors can store a dangerous electrical charge even after the unit is unplugged. Be aware of potentially sharp edges inside the dryer.

Prevention:

Clean the lint filter after every load. Inspect the dryer vent regularly and clean it at least once a year. Replace damaged lint filters immediately. Ensure the dryer vent is not crushed or kinked. Use rigid metal ducting instead of flexible plastic or foil ducting.

Expert Tip:

Some Hotpoint dryers have a diagnostic mode. Press and hold the 'Start' and 'Cancel' buttons simultaneously for 3 seconds to enter service mode. Error codes can then be displayed to help pinpoint the cause of the problem.

Frequently Asked Questions

•How do I check the dryer vent for blockages?

Disconnect the vent from the dryer and the wall. Use a dryer vent cleaning brush or vacuum to remove any lint buildup. Inspect the vent for damage or kinks.

•What type of ducting should I use for my dryer vent?

Rigid metal ducting is the safest and most efficient option. Avoid flexible plastic or foil ducting, as they are more prone to lint buildup and can be a fire hazard.

•How often should I clean my dryer vent?

At least once a year, or more frequently if you notice the dryer is taking longer to dry clothes.

Hotpoint Dryer: How to Access and Clean a Deeply Clogged Lint Filter Housing

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I check the dryer vent for blockages?

•What type of ducting should I use for my dryer vent?

•How often should I clean my dryer vent?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: