Glastender Bar Refrigerator Error Code P1: Thermostat Probe
P1 flashing is a probe problem on the thermostat. The probe wire connector can come loose when the compressor compartment cover or grille is removed. A technician should inspect and reseat the connector.
Medium: the cooler runs a fallback cycle, but it can ice the coil if P1 continues.
- Code
- P1
- Maker
- Glastender
- Equipment
- Bar refrigeration
- Applies to
- Glastender BB/ND/LP/FV/MFV/UCR self-contained coolers with Dixell digital thermostat
What does Glastender error code P1 mean?
The Dixell digital thermostat on Glastender self-contained coolers reads the cabinet temperature through a probe. If the probe signal is missing, the thermostat flashes P1. The guide notes a very common reason: the probe wire connector can come loose when the compressor compartment cover or grille is taken off, for cleaning for example, and that triggers P1. While P1 flashes, the compressor runs five minutes on and five minutes off, a fallback routine. That keeps some cooling, but it can ice up the evaporator coil if it goes on for long. The listed action is to inspect and reseat the thermostat control probe wire connector, per Diagnostic Procedure #1 in the guide. The guide's page 4 was not read in full, so details beyond that are not repeated. The one cause listed is a loose thermostat probe connector after cover or grille removal.
Affected models and control systems
Glastender self-contained coolers in the BB, ND, LP, FV, MFV and UCR series with the Dixell digital thermostat. Other Glastender products use different controls.
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
- P1 flashing on the thermostat
- Compressor cycling five minutes on and five off
- Ice forming on the evaporator coil
Possible causes
Listed in Glastender's documentation
- Loose thermostat probe connector after cover or grille removal
Other likely causes — what usually sits behind error code P1 on this control. A technician confirms which one it is before any part is replaced.
- Probe lead pulled when the grille was lifted for cleaning
- Connector corroded by spilled drinks
- Probe lead damaged where it passes a metal edge
Safe checks before calling for service
- Note whether the grille or compressor cover was removed recently.
- Check the evaporator for ice and switch the cooler off if it is icing heavily.
- Do not pull on wires or open the compressor area.
- Call for service and mention the P1 display.
How a technician diagnoses error code P1
- Read P1 and ask about recent cover or grille removal.
- Inspect and reseat the thermostat control probe wire connector.
- Measure the probe resistance if the connector is sound.
- Defrost the evaporator if iced and check the cycle.
- Replace the probe if its reading is out of range.
- The compressor compartment holds live wiring and moving fan parts.
- Evaporator ice can damage the cooler if the compressor keeps running.
- Probe resistance must be compared with the maker's chart.
How error code P1 differs from similar codes
P1 is the probe alarm on this thermostat. Other displays on Dixell controls may mean something else.
Technical reference
- Maker documentation
- Glastender owner support
- Edition
- Rev. 08-12-13
- Models / control
- Glastender BB/ND/LP/FV/MFV/UCR self-contained coolers with Dixell digital thermostat
- Section
- Controller error codes (P1), p.3; Diagnostic Procedure #1, p.4
- 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
Why does the compressor run five minutes on and off?
P1 puts the thermostat in a fallback routine that cools without a probe.
Can I just push the connector in?
It is best left to a technician, since it sits in the compressor compartment.
Will ice build up?
It can, if P1 goes on for long.
Need help with Glastender error code P1?
A technician confirms the cause on site and gives you the price in writing before any work starts.