GSM AND M101A Troubleshooting

 

Trouble

Reasons

Action

 

1

Switch doesn’t turn on

 

No battery
The contacts are protected or rusted
The battery is expired

Insert the battery, remove the protection

Use a brand new battery

2

 

Polarity is wrong

Remove battery and change polarity

 

3

 

Flooded battery compartment

Wash the battery compartment with fresh water – dry– protect contacts with silicone grease.
Battery cover o-ring must be cleaned and sprayed with silicone oil or grease. DO NOT exceed screwing strength

 

4

 

Unit contacts are broken or corroded

 

SEND TO OCEAN REEF

5

 

Electronic failure

SEND TO OCEAN REEF

 

6

Battery is hot

Polarity was wrong

R eplace battery with proper position in the battery compartment

 

7

Flooded battery compartment

 

Wrong assembling of O-ring cover
Missing, cracked or dirty O- Ring

 

Follow instructions at point 4

Replace O- Ring if needed

 

8

 

Broken battery cover

 

Replace battery cover

 

9

 

Broken GSM body

SEND TO OCEAN REEF

 

10

 

Broken battery cover screw inserts

 

SEND TO OCEAN REEF

 

11

Unit has power but does not transmit

 

Environment conditions
Micro-bubbles in the water Obstacles
Receiving unit is not working

 

Check the environment
Remove micro bubbles
Remove obstacles
Compare with other receiving units

 

12

 

Microphone fails
1. Check contacts
2. Check Hydroponics membrane
if broken
3. Check Mic & Power continuity of mic

 

Clean them and spray protective silicone grease or oil
Replace mic.
If no continuity, replace mic.

 

13

You hear the transmission “beep” but there is no transmission

 

Battery is low
Defective receiving unit

 

Replace the battery
Check with another receiving unit.

 

14

 

Electronic failure

SEND TO OCEAN REEF

 

15

You hear a low battery alarm beep when you start transmission

 

Battery has low voltage
Battery compartment may be flooded

 

Change battery

 

16

You press the transmission button, but after an alarm beep the unit resets to receiving only

 

Battery too low
Battery compartment flooded
Internal electronic failure

 

Change battery

 

17

Not clear communication.
Can’t understand

 

Wrong mic position inside of the mask or wrong connection of contacts

 

Check mic position and contacts

 

18

 

Failure of mic

Replace mic

 

19

Alarm beeps randomly after a certain depth

 

Electronic failure

SEND TO OCEAN REEF

 

20

No receiving only

Transceiver unit doesn’t work

Change transceiver unit

 

21

 

Speaker fails

SEND TO OCEAN REEF

 

22

Transmission only, will not go back to receiving mode

 

PTT fails

SEND TO OCEAN REEF