UniMac UA, UT and UU 120 and 170 lb Tumble Dryers
Older line. 20 model numbers in this series.
Model numbers in this series
Find yours on the data plate. Letters after the base number usually mark the voltage, finish or door and do not change the repair.
- UA120L
- UA120N
- UA170L
- UA170N
- UT120L
- UT120N
- UT120S
- UT120T
- UT170L
- UT170N
- UT170S
- UT170T
- UU120L
- UU120N
- UU120S
- UU120T
- UU170L
- UU170N
- UU170S
- UU170T
Repairs this series usually needs
- Burner that shuts off again and again on airflow
- Open or shorted thermistor message
- Long drying times from a restricted exhaust
- Gas ignition that fails to light
- Drum that stops turning
This group holds 20 large UniMac tumble dryers in the 120 and 170 pound sizes: UA120L, UT120S, UU170N and the rest. The digits give the size in pounds, and the last letter tells the versions apart, with gas and steam heat both in the group. Read the data plate for the full number.
The On Premise Micro control watches a thermistor and an airflow switch. When airflow drops, it shows an AF message and shuts the burner off, and lint or a crushed duct is the usual reason, so we test the exhaust before the control. OP and SH messages point to an open or shorted thermistor circuit. We close the gas shut-off before any service on a gas dryer.
Call us or use the online form, and we will confirm a three-hour arrival window. You see the estimate on paper first, and a dryer beyond help gets an honest answer.
About this series
- Large 120 and 170 lb tumble dryers
- Gas and steam heated models
- On Premise Micro control with a thermistor and an airflow switch
- Numbers like UT120L and UU170S
UniMac dryers codes
What does an AF message on the dryer mean?
The airflow switch reports poor airflow, and the control shuts the burner off for safety. We check the lint screen, the duct and the weather hood before we test the switch.
What does the last letter in UT120S mean?
It separates the versions of the dryer, and gas and steam heat are both found in this group. Your data plate has the full number, and we use it to match burner or steam parts before we visit.
Do you repair gas and steam dryers of this size?
Yes. We shut off the gas before service, check ignition, the exhaust and the control, and on steam dryers we look at the steam supply and valve. Dryers this size need a clear exhaust to work at all.
Book repair for your UniMac UA, UT and UU 120 and 170 lb Tumble Dryers
Tell us the maker, the model number from the data plate and what the unit is doing. We confirm a three-hour arrival window and give you a written price before any work starts.