Glastender Bar Refrigerator Error Code AC 2: Condenser Alarm Code
AC 2 is a controller code that the Glastender manual lists with the same causes as AC 1: a dirty condenser coil and a refrigeration system that needs service. The manual does not define it. Clean the condenser coil, then call for service if it returns.
Medium: a clogged coil can be cleaned, but a system that still cannot hold temperature puts stock at risk.
- Code
- AC 2
- Maker
- Glastender
- Equipment
- Bar refrigeration
- Applies to
- C1SB, C2SB, C1SL, C1SU, F1SB, F1SL with digital controller
What does Glastender error code AC 2 mean?
AC 2 appears in the digital controller table with no written definition, just like AC 1 and AtLo. The manual's only guidance is a list of causes, which are a dirty condenser coil and a refrigeration system that needs service, and a list of actions, which are to clean the condenser coil and to call for service. Because there is no trigger described, we do not claim to know which reading sets the code or how long it must last. What we can explain is the relationship between the listed causes and the cabinet. The condenser coil releases heat from the refrigerant. When it is clogged, the pressure and temperature on the high side climb, the cabinet cools more slowly, and the controller notices. Cleaning is the operator's part of the job. Anything beyond the coil, such as the refrigeration circuit itself, is a task for a technician with the right tools, and that is what the manual's service call is for.
Affected models and control systems
Glastender bar refrigerators with a digital controller, Operation Manual OM007: models C1SB, C2SB, C1SL, C1SU, F1SB and F1SL.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- AC 2 appears on the controller
- The cabinet runs warmer than the set point
- Condenser area feels hot and the compressor seldom shuts off
Possible causes
Listed in Glastender's documentation
- Dirty condenser coil
- Refrigeration system needs service
Other likely causes — what usually sits behind error code AC 2 on this control. A technician confirms which one it is before any part is replaced.
- Cooking grease carried to the coil by a nearby fryer or grill
- Unit installed too tight to the back wall or side cabinets
- Failed condenser fan motor leaving the coil without airflow
- Low refrigerant charge from a slow leak
Safe checks before calling for service
- Unplug the unit and check that there is open space at the sides and back.
- Vacuum the condenser coil and brush off lint from the fins, keeping to the manual's cleaning instructions.
- Wipe any grease film from the coil area with a damp cloth, unplugged.
- Restart the unit and watch the cabinet temperature over the next hour. If AC 2 returns, call for service.
- Report whether the coil was heavily soiled and whether a fan was visibly turning.
How a technician diagnoses error code AC 2
- Confirm the code and cabinet temperature on the controller.
- Check the condenser coil and fan; confirm airflow and fan rotation.
- Measure supply voltage and amperage on the compressor and fan.
- Connect gauges and check system pressures against the unit's specifications.
- Repair the cause, then verify normal pull-down and a clear controller.
- Refrigerant circuit work needs certification and gauges.
- Fan and compressor tests involve live line voltage behind panels.
How error code AC 2 differs from similar codes
AC 2 has the same causes and actions as AC 1 in the manual table, with no definition that separates the two.
Technical reference
- Document
- Operation Manual OM007: Self-Contained, Side Serviced Coolers and Frosters
- Maker documentation
- Glastender owner support
- Edition
- Rev. 06-01-25 OM007
- Models / control
- C1SB, C2SB, C1SL, C1SU, F1SB, F1SL with digital controller
- Section
- Digital Controller Operation, p. 2, Digital Controller Trouble Shooting Error Codes
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Glastender bar refrigeration error codes
Can I run the bar refrigerator with AC 2 showing?
The temperature may be drifting. Check the cabinet with a thermometer and protect perishable items until it is serviced.
What should I do first?
Clean the condenser coil. It is the only operator action the manual lists.
What if AC 2 comes back after cleaning?
The manual's next step is to call for service.
Need help with Glastender error code AC 2?
A technician confirms the cause on site and gives you the price in writing before any work starts.