Anets Fryer Error Code HIGH TMP: Hot Oil or Probe
HIGH TMP on an Anets AGP fryer with the computer control can mean the oil has reached an unsafe temperature, or that the probe reading is incorrect. Turn the fryer off and let it cool well before turning it on again. If the probe is the problem, contact a qualified service technician.
High: the oil may be unsafely hot or the probe unreliable, so the fryer should be off until it is checked.
What does Anets HIGH TMP mean?
HIGH TMP is the computer control's version of the two-meaning message that the digital controller shows as HI. The control compares the probe's oil temperature with a safety ceiling, and when the reading passes it the display says HIGH TMP. The manual's table on page 31 gives two possibilities for the same message: the oil or shortening has really reached an unsafe temperature, or the probe reading is incorrect. The display cannot separate the two. The manual's action is to turn the fryer off and allow ample time to cool before turning it on, and, if the probe reading is the problem, to contact a qualified service technician. No cool-down time is given in minutes. Since the first possibility is a real overheat of cooking oil, the right first move is to stop heating and keep clear of the vat until it has cooled well down.
Affected models and control systems
Anets AGP series gas fryers (AGP55, AGP55T, AGP60, AGP60W and AGP75) with the computer control, which shows HIGH TMP. The digital controller on these fryers shows the same two-meaning message as HI.
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
- HIGH TMP shows on the display
- The oil smells hot or smokes at the surface
- The fryer stops heating until it is turned off and cooled
Possible causes
Likely causes — what usually sits behind HIGH TMP on this control. A technician confirms which one it is before any part is replaced.
- Oil left heating past its setting while idle or without a load
- Probe loose or coated, so it reads higher than the real oil temperature
- Gas valve staying open after the setpoint is reached
Safe checks before calling for service
- Turn the fryer off and keep people and food away from the vat. Do not filter or move hot oil.
- Wait until the oil is clearly well below cooking temperature.
- Check the oil is at the marked line and the probe is straight and clean.
- Turn the fryer on once. If HIGH TMP returns quickly with cool oil, note that and leave the fryer off.
How a technician diagnoses HIGH TMP
- Find out if the oil was truly overheated and compare the display with a separate thermometer once the oil is safe to measure.
- Check oil level and condition and the probe seating.
- Test the probe resistance at a known temperature against its curve.
- Check the gas valve and the control output for a valve that fails to close at the setpoint.
- Replace the probe or control part only after the matching test, and confirm the temperature again on heat-up.
- If the oil really is overheating, the cause lies in the gas valve and control circuit, which need live testing.
- Burns from hot oil and the risk of ignition mean the cool-down, testing and any repair belong with a technician.
How HIGH TMP differs from similar codes
HIGH TMP is the computer control wording and HI is the digital controller wording for the same two meanings. PROBE OP OPEN and SYSTEM FAILURE are separate probe messages.
Technical reference
- Document
- Anets AGP Series Installation & Operation Manual
- Edition
- 150-000007 Rev C (9/19)
- Models / control
- Anets AGP series gas fryers (AGP55, AGP55T, AGP60, AGP60W, AGP75) - computer control
- Section
- 6.7 Computer Control Display, p.31
- 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 Anets fryer error codes
Is the oil always overheated when HIGH TMP shows?
No. The manual gives two meanings: unsafe oil temperature or an incorrect probe reading.
How long until I can restart?
The manual says ample time to cool without a figure. We would wait until the oil is well below cooking temperature.
Who should I call?
The manual says to contact a qualified service technician if the probe reading is the problem.
Need help with Anets HIGH TMP?
A technician confirms the cause on site and gives you the price in writing before any work starts.