MTA TAEevo Tech 101 - RISK ANALYSIS: RESIDUAL RISK

OPERATING AND MAINTENANCE MANUAL
Chapter 10 - Troubleshooting
TAEevo Tech 015÷802 60 Hz UL
193
The data in this manual are not binding and they can be modified by the manufacturer without notice. Reproduction of this manual is strictly prohibited
EN
ENGLISH
K
Alarm displayed:
AtE1/AtE2
pump thermal cutout.
K1
The pump thermal cutout
has tripped because the
water flow rate was too
high.
K1.1
• See problem;
• General alarm relay activation;
• Refrigerant compressor and
pump stop;
• The display shows the message
AtE1/AtE2 alternating with
the value of the BTWOT
probe;
• Pressure difference read on the
pressure gauge with pump
running and pump stopped is
lower than the available
pressure head with pump
maximum flow rate.
Reset thermal cutout.
Increase hydraulic circuit
pressure drop by partially
closing, for example, a pump
outlet cock.
K2
The grille through which
the pump cooling air
flows is obstructed.
K2.1
• See problem;
• General alarm relay activation;
• Refrigerant compressor and
pump stop.
Reset thermal cutout.
Remove obstruction from
grille.
K3
Pump malfunctioning.
K3.1
• See problem;
• General alarm relay activation;
• Refrigerant compressor and
pump stop;
• Pump current input higher than
nominal value;
• Pump noise levels may be
anomalous.
Reset thermal cutout.
Renew pump.
L
Alarm
ACFx
L1
Configuration error.
L1.1
Code ACFx flashing on
display and unit shuts
down.
Power off the unit and then
power it on again.
If this doesn’t solve the
problem, contact the nearest
service centre.
M
Alarm
AEE
M1
Processor is not saving
data correctly.
M1.1
• Unit not working;
• Code AEE flashing on
display;
• LED of general alarm icon

illuminates.
Power off the unit and then
power it on again.
If this doesn’t solve the
problem, contact the nearest
service centre.
PROBLEM CAUSE SYMPTOM REMEDY